message: Document new ide folder
  This folder is meant to host configuration files that can be imported
  in various IDEs. We currently use only CLion
diff: @@ -91,6 +91,7 @@ Many other features have been either prototyped or planned:
  - `docs`: Documentation
  - `math`: Mathematica notebooks used to explore BRDFs, equations, etc.
  - `filament`: Filament engine
  + - `ide`: Configuration files for IDEs (CLion, etc.)
  - `java`: Java bindings for Filament libraries
  - `libs`: Libraries
  - `bluegl`: OpenGL bindings for macOS, Linux and Windows
  