in particular to represent the Tab key as can be seen already near the end of

https://doc.sagemath.org/html/en/installation/launching.html

CC: @tscrim @kwankyu @kliem @slel

Component: documentation

Author: Frédéric Chapoton, ​John Palmieri

Branch/Commit: a0e1d3b

Reviewer: Kwankyu Lee

Issue created by migration from https://trac.sagemath.org/ticket/34629