Small additions

Author: guillaume-haerinck

doc/getting-started/building.md

@@ -173,7 +173,7 @@ Add the .fls shader files by right clicking on the folder and select Add->Existi
 
 ![add existing](building/add-existing.png)
 
-You can now navigate in your custom folder in the `src` folder and select the files.
+You can now navigate in your custom folder in the `src` folder and select the files. These .fsl stands for Forge Shading Language, which is a superset of DirectX's HLSL that can be transpiled into other shading languages such as .glsl.
 
 ![add shaders](building/add-shaders.png)
 

doc/getting-started/the-forge.md

@@ -22,7 +22,7 @@ Compared to an in-house project, using this library is the guarantee to have a m
 
 ### Some visual features
 
-ConfettiFX also has closed-source technologies that you can see them [here](https://theforge.dev/products/). What's below is available freely in TheForge.
+The support for [Mesh Shaders](https://developer.nvidia.com/blog/introduction-turing-mesh-shaders/) (which are growing to be a game-changer as seen with [Unreal Engine 5 Nanite](https://docs.unrealengine.com/5.0/en-US/RenderingFeatures/Nanite/) renderer) is on its way but [not there yet](https://github.com/ConfettiFX/The-Forge/issues/174).
 
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