Update README

Author: gilzoide

README.md

@@ -1,5 +1,5 @@
 # C# GDExtension Bindgen
-WIP C# bindings generator for GDExtension classes
+Automatic C# bindings generator for GDExtension classes (Godot 4.4+)
 
 
 ## How to use
@@ -9,9 +9,24 @@ WIP C# bindings generator for GDExtension classes
 4. Enjoy 🍾
 
 
+## How does it work?
+This editor plugin contains a single script [csharp_gdextension_bindgen.gd](addons/csharp_gdextension_bindgen/csharp_gdextension_bindgen.gd) with the whole C# code generation.
+It uses the reflection provided by [ClassDB](https://docs.godotengine.org/en/stable/classes/class_classdb.html) to generate bindings to enums, constants, properties, methods and signals for all classes registered using the GDExtension API.
+
+The generated C# classes are in the `GDExtensionBindgen` namespace, so you'll need to add `using GDExtensionBindgen;` before using them.
+
+The generated classes do not inherit from any `GodotObject` subclass because they are not C# scripts attached to the native objects, but rather a thin C# wrapper with strongly typed definitions of all members registered. Most of the time this addon tries to generate code that matches what Godot generates for C# for engine classes, e.g. you'll see `StringName`s cached using the `PropertyName`, `MethodName` and `SignalName` nested classes.
+
+
+## Caveats
+- Since generated classes do not inherit `GodotObject`, there's no easy way to create C# scripts that specify the wrapped GDExtension classes as their base class
+
+
 ## TODO
 - [X] support constant integers that are not part of any enum
 - [X] get/set properties inherited from engine class directly without Get/Set
 - [X] support signals
-- [ ] submit to the Asset Library
+- [X] submit to the Asset Library
 - [X] cache StringNames
+- [ ] support packed arrays as method default values
+- [ ] support non-empty Arrays and Dictionaries as method default values