My portfolio site built on Middleman
To start the server: middleman serve
Only ever work in the source directory.
Save yourself a headache of dealing with the source vs master thing and stay on the source branch rather than using a new branch, this isn't a group project after all.
To deploy the site:
stay on branch source and run:
bundle exec middleman build then middleman deploy
Then do the regular git add, commit and push workflow.
After a deploy, if site appears to be down, check: Settings > Custom domain and make sure that evapenzeymoog.com is there.