Documentation: update example conf for "mirror all branches"

Doc is suggesting <repo>:* to mirror all manifest branches, but
in the code we require <repo>:refs/heads/*.

Update documentation so example and text use the refs/heads/*

Change-Id: Iacd78ec9bc92c59a17e39e03638b9f5920f577d3
1 file changed
tree: 5834c870fe179cf21c86c52d98ef25251dffbcf3
  1. java/
  2. javatests/
  3. BUILD
  4. external_plugin_deps.bzl

The plugin will update a superproject to contain the submodules defined in the manifest XML file whenever the manifest repo is changed.

For more information see the documentation or the build instructions