CODE EXAMPLE FOR HTML

Collapse all diffs in a pull request at once

<!---- GitHub: Collapse all diffs in a pull request at once ------------>

TL;DR; => Alt + Click Caret Icon

Collapse (or expand) the contents of all diffs in a pull request 
by holding down the alt key and clicking on the inverted caret icon 
in any file header.

<!------------ GitHub: Collapse all diffs in a pull request at once ---->