Add CC BY 4.0 license and source credits

#2
Perch Semantic Linter org

Licenses labels and Perch context under CC BY 4.0; method source keeps its repository license. Adds a Sources table that credits SWE-rebench-V2, SWE-bench and BugsInPy and counts pairs with no recorded source.

jfbrown95 changed pull request status to merged

Sign up or log in to comment