Forking gists
Each gist indicates which forks have activity, making it easy to find interesting changes from coworkers or complete strangers.
Cloning gists
If you want to make local changes to a gist and push them up to the web, you can clone a gist and make commits the same as you would with any Git repository. For more information, see "Cloning a repository."
Viewing gist commit history
To view a gist's full commit history, click the "Revisions" tab at the top of the gist{.
You will see a full commit history for the gist with diffs.