Gist is a simple way to share snippets and pastes
with others. All gists are git repositories, so they are
automatically versioned, forkable and usable as a git
repository.https://gist.github.com/
Usage
source_gist(entry, ...)
Arguments
entry
either full url (character), gist ID
(numeric or character of numeric). If only an entry ID is
specified and the entry has multiple code block, the
first entry is sourced.
A gist entry can have multiple code blocks (one file for
one block). Gist is based on git, which means gist has
commit histories (i.e., revisions). You can specify a
commit by ginving SHA.