Change docs links to actual file extension (.md)

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

Change-Id: I586af6756dbdaa05ebdcebf585919dc9ec85fdc3
1 file changed
tree: f5604a8ae0056af15848af1383b89e8fbc9725e4
  1. .gitignore
  2. .settings/
  3. BUCK
  4. LICENSE
  5. lib/
  6. src/