Currently, the configuration reference points to Mitaka. This is wrong
as Newton was just released. Additionally, there is also a different
page published from master.
This commit links to the "draft" page from master. This will direct
readers to the right version of the configuration reference
documentation.
Change-Id: I677bfe0757dd99b63c5204b36e5fe68878eeb1f0
40aafa6042