tree 2b45b00ed6a7ca624e316b60fac79c44d740d1ca
parent fe5b3e2b2d04275655e2b90ee13fcf83541e2b6c
author Tao Bao <tbao@google.com> 1525979267 -0700
committer Tao Bao <tbao@google.com> 1525983179 -0700

Document the clang-format usage.

`repo upload` and `git clang-format` may give slightly different
results, because they may trigger different `clang-format` binaries.
Document the setup to get consistent formatting results.

Test: N/A
Change-Id: I927dd25c7a6dd51be4812d5b3857a4b08c5a3f81