Basic git/github Concepts for Newbies

Basic git/github Concepts for Newbies
Repository (slang: Repo): Location on github that stores a snapshot of a project. It includes: snapshots of changes and commits in a history. Names of Repos: Upstream points to the source projects on github. Origin  points to   the  forked copy in github of the source. Master is the local copy on your development system. So when you work locally, you can merge master with origin/master ...