Document need for 'roottree' and 'file' settings in config

In order for Gerrit to pick up a custom gitweb config, it is now [1]
also required to define 'roottree' and 'file' patterns. (Otherwise
gerrit will not show gitweb links).

Branch-network only cares about projects, so we just copy/paste the
default of the other patterns.

[1] See Gerrit core's commit


Change-Id: I47401760f301df6a80a38841c33405ba3980a3ac
1 file changed
tree: badbff77faae1f8445f73129b90064d9bc45f878
  1. src/
  2. .gitignore
  3. BUCK
  5. pom.xml