Fix markup related to quoting in Info

* doc/misc/sc.texi (Citations): Fix markup of '>'.
* doc/misc/mh-e.texi (Speedbar): Fix markup in a @table.
* doc/misc/calc.texi (Yacas Language Mode): Fix a typo.
* doc/emacs/mark.texi (Setting Mark): Remove duplicate
quoting.  (Bug#35202)
1 job for emacs-26 in 28 minutes and 12 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #1461
test

00:28:12