Set up .git-blame-ignore-revs file

Author: mokagio

.git-blame-ignore-revs

@@ -0,0 +1,8 @@
+# Formatting-only commits
+#
+# Make `git blame` ignore the commits in this list by feeding it this file via `--ignore-revs-file`
+#
+# See https://git-scm.com/docs/git-blame#Documentation/git-blame.txt---ignore-revs-fileltfilegt
+#
+# GitHub supports this out of the box.
+# See https://github.com/orgs/community/discussions/5033