Investigate renaming copying.txt to LICENSE.md for GitHub license detection

[coderabbitai]

Currently, the NVDA license is stored in copying.txt. GitHub has built-in license detection that automatically identifies repository licenses when they follow common naming patterns like LICENSE.md.

Consider renaming copying.txt to LICENSE.md to:

• Improve repository license visibility on GitHub
• Follow modern open source conventions
• Make the license more discoverable for new contributors

Related PR: #17600 where license file handling was updated.

Note: This change requires careful consideration of:

• Impact on existing documentation/scripts that might reference copying.txt
• Migration plan for existing installations
• Update of any hardcoded references to the file name

[LeonarddeR]

@coderabbitai could you scan the repository and provide a list of files where copying.txt is mentioned? May be you could even come up with a script that allows us to automatically do this rename?

[LeonarddeR]

@coderabbitai yes, please test it

[LeonarddeR]

@coderabbitai many files have something like this in their header: See the file COPYING for more details. They mention COPYING, not copying.txt, could you also deal with that?

[LeonarddeR]

@coderabbitai please test this thoroughly first. Please also avoid changing stuff in user_docs/*, other than user_docs/en/*.md

[LeonarddeR]

@coderabbitai I don't think any md file contains the See the file COPYING text, could you confirm that and avoid checking md files in source and tests directories?

[LeonarddeR]

@coderabbitai your checks re user_docs is not correct, as there are no references to blob/master in user_docs. Please perform a new scan of occurrence of copying.txt across the repo and rewrite the script accordingly.

[LeonarddeR]

@coderabbitai ok, just leave out user_docs

[seanbudd]

I think renaming to just COPYING has the same affect in GitHub and less work

[LeonarddeR]

I don't see ``COPYING` mentioned as an accepted alternative here

[seanbudd]

@LeonarddeR - seems to work for e-speak
https://github.com/espeak-ng/espeak-ng

[gerald-hartig]

@LeonarddeR please consider using your own instance of coderabbit for conversations such as these as otherwise this creates a lot of email noise and consumes up our usage tokens.

[LeonarddeR]

@gerald-hartig I'm sorry for the inconvenience.