** In Show Paren Mode, a parenthesis can be highlighted when point
stands inside it, and certain parens can be highlighted when point is
at BOL or EOL, or in whitespace there. To enable these, customize,
-respectively, show-paren-when-point-inside-paren or
-show-paren-when-point-in-periphery.
+respectively, `show-paren-when-point-inside-paren' or
+`show-paren-when-point-in-periphery'.
** Lisp mode
*** Strings after `:documentation' are highlighted as docstrings.