Update README.md

Author: Smidgens

README.md

@@ -2,14 +2,15 @@
 
 # ℹ️ Features
 
-* Various utility extensions for working with common System and Unity types.
+* Various utility extensions for commonly used Unity and System types.
+* Supports disabling extensions on a per-type basis: `EXT_0_<NAMESPACE>_<TYPE>`
 
 <br/>
 
 
 **⌛ Planned**
 
-* [ ] Preprocessor symbols to disable extensions on a per-type basis (ie. `EXTENSIONS_DISABLE_UNITYENGINE_RECT`.
+* [ ] Extensions for types defined outside Unity core module (Animation, UI, etc.) and preprocessor symbols to selectively enable them: `EXT_1_<NAMESPACE>_<TYPE>`
 * [ ] Online documentation
 
 <br/>
@@ -27,4 +28,19 @@
 
 See `Runtime` folder for full list of extensions.
 
+<br/>
+
+#### ⭕ Disabling extensions for specific type
+
+
+
+Add a preprocessor symbol to your project settings on the form: `EXT_0_<NAMESPACE>_<TYPE>`.
+
+Example:
+
+```cs
+// disables extensions for System.Float
+EXT_0_SYSTEM_FLOAT
+```
+