Allow cross-linking to @ command documentation

docs/conf.py

@@ -245,6 +245,7 @@ def write_cli_docs(all_kitten_names):
         from kitty.cmds import cli_params_for
         for cmd_name in all_commands:
             func = cmap[cmd_name]
+            p(f'.. _at_{func.name}:\n')
             p('kitty @', func.name + '\n' + '-' * 120)
             p('.. program::', 'kitty @', func.name)
             p('\n\n' + as_rst(*cli_params_for(func)))

docs/faq.rst

@@ -83,7 +83,7 @@ How do I change the colors in a running kitty instance?
 You can either use the
 `OSC terminal escape codes <http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h2-Operating-System-Commands>`_
 to set colors or you can enable :doc:`remote control <remote-control>`
-for |kitty| and use ``kitty @ set-colors --help``.
+for |kitty| and use :ref:`at_set-colors`.
 
 
 How do I specify command line options for kitty on macOS?