Monorepo for Tangled tangled.org

git: add gitattributes to mark generated files

both jj-vcs and tangled don't support gitattributes yet, but this would
be still valuable for git tools.

Signed-off-by: Seongmin Lee <git@boltless.me>

boltless.me 13bbaad1 1220020c

verified
+2
+2
.gitattributes
··· 1 + api/tangled/** linguist-generated -diff 2 + flake.lock -diff