Change docs links to actual file extension (.md)

See https://gerrit-review.googlesource.com/83950 for detailed context.

Change-Id: I1d86feee4aaffcf7b9bd7db5e094c6a421bb6b42
3 files changed
tree: c543d4b44decf06129b4bb86656162b32fa903a8
  1. .settings/
  2. src/
  3. .gitignore
  4. .mailmap
  5. BUCK
  6. LICENSE