Update ECMASCRIPT.md (#1851)

* Update ECMASCRIPT.md

Signed-off-by: Sora Morimoto <sora@morimoto.io>
Co-authored-by: Hugo Heuzard <hugo.heuzard@gmail.com>

Author: smorimoto

ECMASCRIPT.md

@@ -5,35 +5,56 @@ Features are grouped by ECMAScript version.
 
 ## ECMAScript 2015
 
+### Arrow function expressions
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions#browser_compatibility)
+- For Wasm_of_ocaml
+
 ### Classes
 
 - [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes#browser_compatibility)
 
-### Rest parameters
+### const
 
-- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters#browser_compatibility)
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/const#browser_compatibility)
 
-### Spread syntax (in function call)
+### for...of
 
-- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax#browser_compatibility)
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...of#browser_compatibility)
+
+### let
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/let#browser_compatibility)
+
+### Map
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#browser_compatibility)
+- Used in runtime for data structures and object tracking
 
 ### Object.assign
 
 - [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign#browser_compatibility)
 
-### Arrow function expressions
+### Rest parameters
 
-- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions#browser_compatibility)
-- For Wasm_of_ocaml
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters#browser_compatibility)
+
+### Set
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set#browser_compatibility)
+
+### Spread syntax (in function call)
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax#browser_compatibility)
 
 ### TypedArray
 
 - [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray#browser_compatibility)
 - To implement bigarray
 
-### Map
+### WeakMap
 
-- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#browser_compatibility)
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap#browser_compatibility)
 
 ## ECMAScript 2016
 
@@ -49,18 +70,27 @@ Features are grouped by ECMAScript version.
 
 ## ECMAScript 2020
 
+### BigInt
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt#browser_compatibility)
+- For Wasm_of_ocaml
+
 ### globalThis
 
 - [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/globalThis#browser_compatibility)
 - Polyfilled in the repository
 
-### BigInt
+### Optional chaining (?.)
 
-- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt#browser_compatibility)
-- For Wasm_of_ocaml
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining#browser_compatibility)
 
 ## ECMAScript 2021
 
+### FinalizationRegistry
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/FinalizationRegistry#browser_compatibility)
+- Optional for js_of_ocaml
+
 ### WeakRef
 
 - [Compatibility](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakRef#browser_compatibility)
@@ -69,6 +99,26 @@ Features are grouped by ECMAScript version.
 
 ## Web APIs
 
+### Canvas API
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API#browser_compatibility)
+
+### Crypto API
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/API/Crypto#browser_compatibility)
+
+### Document API
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/API/Document#browser_compatibility)
+
+### Image API
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement#browser_compatibility)
+
+### Performance API
+
+- [Compatibility](https://developer.mozilla.org/en-US/docs/Web/API/Performance#browser_compatibility)
+
 ### XMLHttpRequest
 
 - [Compatibility](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest#browser_compatibility)
@@ -78,3 +128,23 @@ Features are grouped by ECMAScript version.
 ### Built-in modules with `node:` prefix
 
 - [Compatibility](https://nodejs.org/docs/latest/api/modules.html#built-in-modules)
+
+### Child process
+
+- [Compatibility](https://nodejs.org/docs/latest/api/child_process.html)
+
+### File system
+
+- [Compatibility](https://nodejs.org/docs/latest/api/fs.html)
+
+### Process
+
+- [Compatibility](https://nodejs.org/docs/latest/api/process.html)
+
+### TTY
+
+- [Compatibility](https://nodejs.org/docs/latest/api/tty.html)
+
+### Util
+
+- [Compatibility](https://nodejs.org/docs/latest/api/util.html)