File should be llms.md, not llms.txt

If Markdown is the intended format, then the standard file should end in a ".md" extension. There is no need to follow antiquated standards like robots.txt. My IDE will provide a better editing experience if MD files have the extension ".md".

The issue compares the standard filenames llms.txt and llms.md; start by reviewing how this repository defines and publishes the standard file. Determine whether the project intends to change the convention and where the chosen filename is referenced. Done means the accepted naming convention is applied consistently wherever the repository documents or presents the standard file.

Written by the indexing model from the issue text.