Add LLM policy to contributing.md

Author: horenmar

docs/contributing.md

@@ -7,6 +7,8 @@
 [Writing documentation](#writing-documentation)<br>
 [Writing code](#writing-code)<br>
 [CoC](#coc)<br>
+[Using LLMs when contributing](#using-llms-when-contributing)<br>
+
 
 So you want to contribute something to Catch2? That's great! Whether it's
 a bug fix, a new feature, support for additional compilers - or just
@@ -332,6 +334,19 @@ When adding new `CATCH_CONFIG` option, there are multiple places to edit:
 This project has a [CoC](../CODE_OF_CONDUCT.md). Please adhere to it
 while contributing to Catch2.
 
+
+## Using LLMs when contributing
+
+I do not care whether you used LLM for your contribution. What I care
+about is the quality of the contribution, not whether you made it through
+prompting LLM, letting GAs run wild, dictated it into the computer, wrote
+it using your nose or used butterflies to flip the correct bits.
+
+The flipside of this is that I am also not going to iterate your LLM for
+you. If a PR looks LLM generated and does not pass the muster to be merged
+as-is, I am going to close it.
+
+
 -----------
 
 _This documentation will always be in-progress as new information comes