Origin for each line in .gitattributes from check-in c1ddb4c814:

c1ddb4c814 2021-03-01    1: # Effectively disable Linguist
c1ddb4c814 2021-03-01    2: doc/* linguist-vendored
c1ddb4c814 2021-03-01    3: src/* linguist-vendored
c1ddb4c814 2021-03-01    4: *.md linguist-vendored
c1ddb4c814 2021-03-01    5: *.txt linguist-vendored
c1ddb4c814 2021-03-01    6: *.red linguist-vendored