Here is the problem:
Whenever I do
$ git pull 'https://github.com/username/reponame.github.io.git'
followed by the url I get no problems but when I do
git pull origin master 'https://github.com/username/reponame.github.io.git'
followed by the url it returns
fatal: Invalid refspec 'https://github.com/username/reponame.github.io.git'
What does this mean and how should I go about fixing it?