Fix docs build failure

dynamic_background_opacity needs to be its own option in the conf docs.

Author: kovidgoyal

docs/conf.py

@@ -180,7 +180,7 @@
 # }}}
 
 
-# GitHub linking inlne roles {{{
+# GitHub linking inline roles {{{
 
 def num_role(which, name, rawtext, text, lineno, inliner, options={}, content=[]):
     ' Link to a github issue '

kitty/config_data.py

@@ -698,10 +698,15 @@ def tab_fade(x):
 the escape codes to set the terminals default colors in a shell script to
 launch your editor.  Be aware that using a value less than 1.0 is a (possibly
 significant) performance hit.  If you want to dynamically change transparency
-of windows set dynamic_background_opacity to yes (this is off by default as it
-has a performance cost)
+of windows set :opt:`dynamic_background_opacity` to :code:`yes` (this is off by
+default as it has a performance cost)
+'''))
+
+o('dynamic_background_opacity', False, long_text=_('''
+Allow changing of the :opt:`background_opacity` dynamically, using either keyboard
+shortcuts (:sc:`increase_background_opacity` and :sc:`decrease_background_opacity`)
+or the remote control facility.
 '''))
-o('dynamic_background_opacity', False)
 
 o('dim_opacity', 0.75, option_type=unit_float, long_text=_('''
 How much to dim text that has the DIM/FAINT attribute set. One means no dimming and