Update docs

doc/changelog.asciidoc

@@ -61,6 +61,8 @@ Added
 - Support for incremental search, with a new `search.incremental` setting.
 - New `--rapid` flag for `:command-accept` (bound to `Ctrl-Enter` by default),
   which allows executing a command in the completion without closing it.
+- The `colors.completion.fg` setting can now be a list, allowing to specify
+  different colors for the three completion columns.
 
 Changed
 ~~~~~~~

doc/help/settings.asciidoc

@@ -701,10 +701,15 @@ Default: +pass:[#333333]+
 [[colors.completion.fg]]
 === colors.completion.fg
 Text color of the completion widget.
+May be a single color to use for all columns or a list of three colors, one for each column.
 
-Type: <<types,QtColor>>
+Type: <<types,List of QtColor&#44; or QtColor>>
 
-Default: +pass:[white]+
+Default: 
+
+- +pass:[white]+
+- +pass:[white]+
+- +pass:[white]+
 
 [[colors.completion.item.selected.bg]]
 === colors.completion.item.selected.bg