Reconfigure GH pages model documentation deployment

[bfurner]

Previously the repository was configured to deploy model documentation to a GH pages site at https://bfurner.github.io/bdchm/ on each successful merge of a PR. This will need to be reconfigured to point to something like https://rtiinternational.github.io/bdchm

[bfurner]

Actually it appears that the docs are now automatically deployed to the following URL:

[https://rtiinternational.github.io/NHLBI-BDC-DMC-HM/] (https://rtiinternational.github.io/NHLBI-BDC-DMC-HM/)

Someone with permissions to change repo settings will need to update the 'About' section on the repo home page to reflect the new URL