chore: update docs

languages/ada/README.md

@@ -0,0 +1,17 @@
+<div align="center">
+  <h1>Raylib in Ada</h1>
+  <img src="./demo.gif" alt="Ada Raylib demo" />
+</div>
+
+## Quick start
+
+```sh
+$ make
+$ ./raylib_ada
+```
+
+Complete command in [Makefile](./Makefile)
+
+## Credits
+
+- Logo: [Wikimedia](https://commons.wikimedia.org/wiki/File:Ada_horizon_green_logo_with_slogan.svg)