* More font-lock keywords for Elisp

This package provides ~morlock-mode~ which highlights additional
expressions in Emacs Lisp mode.

Symbols are highlighted if their ~font-lock-keyword~ symbol
property is non-nil.  This package does that for symbols listed
in ~morlock-font-lock-symbols~.  To highlight additional symbols
either add them to that list or set that symbol property directly.

The ~morlock-font-lock-keywords~ variable is used for more complex
expressions.

#+begin_quote
[!NOTE]
When using Emacs 32, this package can be replaced with just:

#+begin_src emacs-lisp
  (dolist (symbol '(not null xor))
    (put symbol 'font-lock-keyword t))
#+end_src
#+end_quote

#+html: <br><br>
#+html: <a href="https://github.com/tarsius/morlock/actions/workflows/compile.yml"><img alt="Compile" src="https://github.com/tarsius/morlock/actions/workflows/compile.yml/badge.svg"/></a>
#+html: <a href="https://snapshots.melpa.org/#/morlock"><img alt="MELPA Snapshots" src="https://snapshots.melpa.org/packages/morlock-badge.svg"/></a>
#+html: <a href="https://releases.melpa.org/#/morlock"><img alt="MELPA Releases" src="https://releases.melpa.org/packages/morlock-badge.svg"/></a>
#+html: <a href="https://emacsair.me/human"><img alt="human made" src="https://emacsair.me/assets/badges/human.svg"/></a>