message: Update build_mozc_in_docker.md.
diff: @@ -36,10 +36,17 @@ python build_mozc.py runtests -c Debug
  Experimental: Instead of build_mozc.py, you can try to use Bazel.
  ```
  -bazel build package --config oss_linux
  +bazel build package --config oss_linux -c opt
  ```
  -`package` is an alias to build `server:mozc_server` and `gui/tool:mozc_tool`.
  +`package` is an alias to build `server:mozc_server`, `gui/tool:mozc_tool`,
  +`renderer:mozc_renderer` and `ibus:ibus_mozc`.
  +
  +Unittests can be executed as follows.
  +
  +```
  +bazel test base:util_test --config oss_linux -c dbg
  +```
  ### Build Mozc library for Android:
  