Add built-in mesh simplifier support to docs

Author: amirebrahimi

README.md

@@ -1,7 +1,7 @@
 # AutoLOD
 Automatic LOD generation + scene optimization - Initial release was on January 12, 2018 via [blogpost](https://blogs.unity3d.com/2018/01/12/unity-labs-autolod-experimenting-with-automatic-performance-improvements/)
 
-AutoLOD is primarily a framework for enabling automatic post-processing of geometrical model assets on import to create simplified levels-of-detail (LOD). A [default mesh simplifier](https://github.com/Unity-Technologies/UnityMeshSimplifier/) is included, but can be swapped out with other simplifiers and on a per-model basis if needed. Additionally, a whole scene can be hierarchically chunked into LODs with [SceneLOD](https://github.com/Unity-Technologies/AutoLOD/wiki/Scenelod).
+AutoLOD is primarily a framework for enabling automatic post-processing of geometrical model assets on import to create simplified levels-of-detail (LOD). A [default mesh simplifier](https://github.com/Whinarn/UnityMeshSimplifier/) is included, but can be swapped out with other simplifiers and on a per-model basis if needed. Additionally, a whole scene can be hierarchically chunked into LODs with [SceneLOD](https://github.com/Unity-Technologies/AutoLOD/wiki/Scenelod).
 
 ## Experimental Status
 It’s important to note that AutoLOD is an experimental feature. As such, there is no formal support (e.g. FogBugz, [email protected], Premium Support, etc.) offered, so please do not use these channels. Instead, post your questions, comments, suggestions, and issues here on GitHub.
@@ -18,7 +18,10 @@ Experimental means this:
 ## Features
 - LOD generation on model import with sensible [defaults](https://github.com/Unity-Technologies/AutoLOD/wiki/Home)
 - Project-wide and per-model LOD import settings
-- Asynchronous, pluggable LOD generation framework
+- Asynchronous, pluggable LOD generation framework with built-in support for:
+  - [UnityMeshSimplifier](https://github.com/Whinarn/UnityMeshSimplifier/)
+  - [Simplygon](https://simplygon.com/)
+  - [InstaLOD](https://instalod.com/)
 - Hierarchical LOD support via [SceneLOD](https://github.com/Unity-Technologies/AutoLOD/wiki/Scenelod) -> [watch a [quick tutorial video](http://www.youtube.com/watch?v=EuBeZvzVwrw "SceneLOD Tutorial")]
 
 ### Useful classes (for your own projects, too!)