Start writing an actual readme

readme.md

@@ -1,6 +1,6 @@
-This project is in an early prototyping state. I currently don't want to
-keep it secret but I also don't want to draw attention to it just yet.
-I hope you will handle this the same way for now.
+Kongruent is a language and compiler for data-parallel programming aka shaders. It compiles Kongruent code to its own bytecode and can then transform it into HLSL, GLSL, MSL (for Metal), WGSL (for WebGPU) and SPIR-V.
+
+It is Robert's successor project to https://github.com/Kode/krafix which includes earlier work by Robert and Bill who later contributed HLSL and Metal support to SPIRV-Cross.
 
 ## SAST Tools