Update overview.mdx

Author: jayhack

docs/introduction/overview.mdx

@@ -35,12 +35,9 @@ Codegen handles complex refactors while maintaining correctness, enabling a broa
 <Tip>Codegen works with both Python and Typescript/JSX codebases. Learn more about language support [here](/building-with-codegen/language-support).</Tip>
 
 ## Installation
+<Warning>Codegen requires Python 3.13</Warning>
 
 ```bash
-# Install CLI
-uv tool install codegen
-
-# Install inside existing project
 pip install codegen
 ```