Documentation added.
The configuration parameters are not documented yet. Since it will be bundled they should be documented.
@Cindy.cicalese: Do you happen to know who is working on this extension. From looking at the commit history I was unable to determine a lead here.
Thanks for mentioning this, @Kghbln. You are absolutely correct that the configuration parameters need to be document. I took a stab at documenting them. @Legoktm, @Reedy (WMF), perhaps you could check to see if the documentation I added is correct? We should add to the list of tasks for bundling new extensions: 1) check documentation and 2) identify a maintainer.