feat: describe how to obtain config params

pages/book/config.mdx

@@ -119,7 +119,7 @@ In [Blueprint][bp], they act as default unless modified in `wrappers/ContractNam
 
 `false{:json}` by default.
 
-If set to `true{:json}`, enables debug output of a contract and allows usage of [`dump(){:tact}`](/ref/api-debug#dump) function, which is useful for [debugging purposes](/book/debug). With this option enabled, the contract will report that it was compiled in debug mode using the `supported_interfaces` method.
+If set to `true{:json}`, enables debug output of a contract and allows usage of [`dump(){:tact}`](/ref/core-debug#dump) function, which is useful for [debugging purposes](/book/debug). With this option enabled, the contract will report that it was compiled in debug mode using the `supported_interfaces` method.
 
 ```json filename="tact.config.json" {8,14}
 {

pages/book/expressions.mdx

@@ -127,7 +127,7 @@ Tact strings support a range of [escape sequences](https://en.wikipedia.org/wiki
 
   Read more about strings and [`String{:tact}`][p] type:\
   [Primitive types in the Book][p]\
-  [Strings and StringBuilders in the Reference](/ref/api-strings)
+  [Strings and StringBuilders in the Reference](/ref/core-strings)
 
 </Callout>
 

pages/book/integers.mdx

@@ -46,7 +46,7 @@ Use underscores (`_`) to improve readability: $\mathrm{0b111\_111\_111}$ is equa
 
 For example, arithmetic with dollars requires two decimal places after the dot — those are used for the cents value. But how would we represent the number \$$1.25$ if we're only able to work with integers? The solution is to work with _cents_ directly. This way, \$$1.25$ becomes $125$ cents. We simply memorize that the two rightmost digits represent the numbers after the decimal point.
 
-Similarly, working with Toncoins requires nine decimal places instead of the two. Therefore, the amount of $1.25$ TON, which can be represented in Tact as [`ton("1.25"){:tact}`](/ref/api-comptime#ton), is actually the number $1250000000$. We refer to such numbers as _nano-tons_ (or _nanoToncoins_) rather than _cents_.
+Similarly, working with Toncoins requires nine decimal places instead of the two. Therefore, the amount of $1.25$ TON, which can be represented in Tact as [`ton("1.25"){:tact}`](/ref/core-comptime#ton), is actually the number $1250000000$. We refer to such numbers as _nano-tons_ (or _nanoToncoins_) rather than _cents_.
 
 ## Serialization
 

pages/book/operators.mdx

@@ -8,7 +8,7 @@ This page lists all the operators in Tact in decreasing order of their [preceden
 
 <Callout>
 
-  Note, that there are no implicit type conversions in Tact, so operators can't be used to, say, add values of different type or compare them in terms of equality without explicitly casting to the same type. That's done with certain functions from the standard library. See [`Int.toString(){:tact}`](/ref/api-strings#inttostring) for an example of such function.
+  Note, that there are no implicit type conversions in Tact, so operators can't be used to, say, add values of different type or compare them in terms of equality without explicitly casting to the same type. That's done with certain functions from the standard library. See [`Int.toString(){:tact}`](/ref/core-strings#inttostring) for an example of such function.
 
 </Callout>
 
@@ -211,7 +211,7 @@ two % 1; // 1
 -1 % -5; // -1
 ```
 
-The simplest way to avoid confusion between the two is to prefer using positive values via [`abs(x: Int){:tact}`](/ref/api-math#abs):
+The simplest way to avoid confusion between the two is to prefer using positive values via [`abs(x: Int){:tact}`](/ref/core-math#abs):
 
 ```tact
 abs(-1) % abs(-5); // 1

pages/book/structs-and-messages.mdx

@@ -198,8 +198,8 @@ fun convertationFun() {
 <Callout>
 
   See those extension functions in the Reference:\
-  [`Struct.toCell(){:tact}`](/book/api-cells#structtocell)\
-  [`Message.toCell(){:tact}`](/book/api-cells#messagetocell)
+  [`Struct.toCell(){:tact}`](/ref/api-cells#structtocell)\
+  [`Message.toCell(){:tact}`](/ref/api-cells#messagetocell)
 
 </Callout>
 

pages/ref/core-advanced.mdx

@@ -10,13 +10,13 @@ Various niche, dangerous or unstable features which can produce unexpected resul
 
 </Callout>
 
-## readForwardFee
+## Context.readForwardFee
 
 ```tact
 extends fun readForwardFee(self: Context): Int
 ```
 
-Extension function for the [`Context{:tact}`](/ref/api-common#context).
+Extension function for the [`Context{:tact}`](/ref/core-common#context).
 
 Reads [forward fee](https://docs.ton.org/develop/smart-contracts/guidelines/processing) and returns it as [`Int{:tact}`][int] value in nanoToncoins (nano-tons).
 
@@ -32,20 +32,26 @@ let fwdFee: Int = context().readForwardFee();
 fun getConfigParam(id: Int): Cell?;
 ```
 
-Loads network configuration parameter from the blockchain.
+Loads a [configuration parameter](https://docs.ton.org/develop/howto/blockchain-configs) of TON Blockchain by its `id` number.
 
-Usage example:
+Usage examples:
 
 ```tact
-let iDemand: Cell = getConfigParam(0)!!;
+// Parameter 0, address of a special smart contract that stores the blockchain's configuration
+let configAddrAsCell: Cell = getConfigParam(0)!!;
+
+// Parameter 18, configuration for determining the prices for data storage
+let dataStorageFeeConfig: Cell = getConfigParam(18)!!;
 ```
 
 <Callout>
 
-  A standard library [`@stdlib/config`](/ref/stdlib-config) provides two related helper functions:\
+  Standard library [`@stdlib/config`](/ref/stdlib-config) provides two related helper functions:\
   [`getConfigAddress(){:tact}`](/ref/stdlib-config#getconfigaddress) for retrieving config [`Address{:tact}`][p]\
   [`getElectorAddress(){:tact}`](/ref/stdlib-config#getconfigaddress) for retrieving elector [`Address{:tact}`][p]
 
+  Read more about other parameters: [Config Parameters in TON Docs](https://docs.ton.org/develop/howto/blockchain-configs).
+
 </Callout>
 
 ## acceptMessage
@@ -101,7 +107,7 @@ throw(42); // and this won't fail it
 fun nativePrepareRandom();
 ```
 
-Prepares a random number generator by using [`nativeRandomizeLt(){:tact}`](#nativerandomizelt). Automatically called by [`randomInt(){:tact}`](/ref/api-random#randomint) and [`random(){:tact}`](/ref/api-random#random) functions.
+Prepares a random number generator by using [`nativeRandomizeLt(){:tact}`](#nativerandomizelt). Automatically called by [`randomInt(){:tact}`](/ref/core-random#randomint) and [`random(){:tact}`](/ref/core-random#random) functions.
 
 Usage example:
 
@@ -148,11 +154,11 @@ let idk: Int = randomInt(); // ???, it's random!
 fun nativeRandom(): Int;
 ```
 
-Generates and returns an $256$-bit random number just like [`randomInt(){:tact}`](/ref/api-random#randomint), but doesn't initialize the random generator with [`nativePrepareRandom(){:tact}`](#nativepreparerandom) beforehand.
+Generates and returns an $256$-bit random number just like [`randomInt(){:tact}`](/ref/core-random#randomint), but doesn't initialize the random generator with [`nativePrepareRandom(){:tact}`](#nativepreparerandom) beforehand.
 
 <Callout>
 
-  Don't use this function directly, and prefer using [`randomInt(){:tact}`](/ref/api-random#randomint) instead.
+  Don't use this function directly, and prefer using [`randomInt(){:tact}`](/ref/core-random#randomint) instead.
 
 </Callout>
 
@@ -162,11 +168,11 @@ Generates and returns an $256$-bit random number just like [`randomInt(){:tact}`
 fun nativeRandomInterval(max: Int): Int;
 ```
 
-Generates and returns a $256$-bit random number in the range from $0$ to `max` similar to [`random(){:tact}`](/ref/api-random#random), but doesn't initialize the random generator with [`nativePrepareRandom(){:tact}`](#nativepreparerandom) beforehand.
+Generates and returns a $256$-bit random number in the range from $0$ to `max` similar to [`random(){:tact}`](/ref/core-random#random), but doesn't initialize the random generator with [`nativePrepareRandom(){:tact}`](#nativepreparerandom) beforehand.
 
 <Callout>
 
-  Don't use this function directly, and prefer using [`random(){:tact}`](/ref/api-random#random) instead.
+  Don't use this function directly, and prefer using [`random(){:tact}`](/ref/core-random#random) instead.
 
 </Callout>
 
@@ -180,7 +186,7 @@ Sends the message by specifying the complete `cell` and the [message `mode`](/bo
 
 <Callout>
 
-  Prefer using a much more common and user-friendly [`send(){:tact}`](/ref/api-common#send) function unless you have a complex logic that can't be expressed otherwise.
+  Prefer using a much more common and user-friendly [`send(){:tact}`](/ref/core-common#send) function unless you have a complex logic that can't be expressed otherwise.
 
 </Callout>
 

pages/ref/core-base.mdx

@@ -88,7 +88,7 @@ In case reservation attempt fails and in the default case without the attempt, t
 <Callout>
 
   Note, that `self.forward(){:tact}` never sends additional Toncoins on top of what's available on the balance.\
-  To be able to send more Toncoins with a single message, use the the [`send(){:tact}`](/ref/api-common#send) function.
+  To be able to send more Toncoins with a single message, use the the [`send(){:tact}`](/ref/core-common#send) function.
 
 </Callout>
 

pages/ref/core-common.mdx

@@ -66,7 +66,7 @@ Usage example:
 
 ```tact
 receive() {
-  let whoSentMeMessage: Address = sender();
+    let whoSentMeMessage: Address = sender();
 }
 ```
 
@@ -120,7 +120,7 @@ fun newAddress(chain: Int, hash: Int): Address;
 
 Creates a new [`Address{:tact}`][p] based on the [`chain` id](https://ton-blockchain.github.io/docs/#/overviews/TON_blockchain_overview) and the [SHA-256](/ref/stdlib-math#sha256) encoded [`hash` value](https://docs.ton.org/learn/overviews/addresses#account-id).
 
-This function tries to resolve constant values in [compile-time](/ref/api-comptime) whenever possible.
+This function tries to resolve constant values in [compile-time](/ref/core-comptime) whenever possible.
 
 Usage example:
 

pages/ref/core-math.mdx

@@ -120,7 +120,7 @@ fun pow(base: Int, exp: Int): Int;
 
 Computes and returns the [exponentiation](https://en.wikipedia.org/wiki/Exponentiation) involving two numbers: the `base` and the exponent (or _power_) `exp`. Exponent `exp` must be non-negative, otherwise an error with [exit code 5](/book/exit-codes#5) will be thrown: `Integer out of expected range`.
 
-Note, that this function works both at run-time and at [compile-time](/ref/api-comptime).
+Note, that this function works both at run-time and at [compile-time](/ref/core-comptime).
 
 Usage example:
 
@@ -147,7 +147,7 @@ contract Example {
 
 <Callout>
 
-  List of functions, that only work at compile-time: [API Comptime](/ref/api-comptime).
+  List of functions, that only work at compile-time: [API Comptime](/ref/core-comptime).
 
 </Callout>
 
@@ -157,7 +157,7 @@ contract Example {
 fun pow2(exp: Int): Int;
 ```
 
-Similar to [`pow(){:tact}`](#pow), but sets the `base` to $2$. Works both at run-time and at [compile-time](/ref/api-comptime).
+Similar to [`pow(){:tact}`](#pow), but sets the `base` to $2$. Works both at run-time and at [compile-time](/ref/core-comptime).
 
 Usage examples:
 
@@ -184,7 +184,7 @@ contract Example {
 
 <Callout>
 
-  List of functions, that only work at compile-time: [API Comptime](/ref/api-comptime).
+  List of functions, that only work at compile-time: [API Comptime](/ref/core-comptime).
 
 </Callout>
 
@@ -260,7 +260,7 @@ Computes and returns the [SHA-256](https://en.wikipedia.org/wiki/SHA-2#Hash_stan
 
 In case `data` is a [`String{:tact}`][p] it should have a number of bits divisible by $8$, and in case it's a [`Slice{:tact}`][p] it must **also** have no references (i.e. only up to 1023 bits of data in total).
 
-This function tries to resolve constant string values in [compile-time](/ref/api-comptime) whenever possible.
+This function tries to resolve constant string values in [compile-time](/ref/core-comptime) whenever possible.
 
 Usage examples:
 

pages/ref/core-random.mdx

@@ -37,7 +37,7 @@ let allYourRandomBelongsToUs: Int = randomInt(); // ???, it's random :)
 
 <Callout type="warning" emoji="⚠️">
 
-  Advanced functions for working with random numbers are listed on a specialized page: [Advanced APIs](/ref/api-advanced).
+  Advanced functions for working with random numbers are listed on a specialized page: [Advanced APIs](/ref/core-advanced).
 
 </Callout>
 

pages/ref/core-strings.mdx

@@ -144,7 +144,7 @@ extends fun toSlice(self: StringBuilder): Slice;
 
 Extension function for the [`StringBuilder{:tact}`][p].
 
-Returns an assembled [`Cell{:tact}`][p] as a [`Slice{:tact}`][p] from a [`StringBuilder{:tact}`][p]. Alias to [`self.toCell().asSlice(){:tact}`](/ref/api-cells#cellasslice).
+Returns an assembled [`Cell{:tact}`][p] as a [`Slice{:tact}`][p] from a [`StringBuilder{:tact}`][p]. Alias to [`self.toCell().asSlice(){:tact}`](/ref/core-cells#cellasslice).
 
 Usage example: