Update README.md

Author: gagliardetto

README.md

@@ -50,6 +50,9 @@ We use it for these main purposes:
 * Editor plugins
   * [Visual Studio Code](https://marketplace.visualstudio.com/items?itemName=GitHub.vscode-codeql) (Official)
   * [Neovim](https://github.com/pwntester/codeql.nvim)
+* Code generation
+  * [cqlgen](https://github.com/gagliardetto/cqlgen) — A codeql generation library written in Go.
+  * [codemill](https://github.com/gagliardetto/codemill) — A codeql model generator for Go with a web UI. 
 
 ## Contributing