docs: add use case for 'no-config' setting

diff --git a/docs/settings.rst b/docs/settings.rst
index 2e9a3945b1670d51d65f13bfb6347094eab665a6..88572a15f14072658fb80982947c793ae5852f3b 100644 (file)
--- a/docs/settings.rst
+++ b/docs/settings.rst
@@ -1034,7 +1034,8 @@ Seconds to store queries with no answer in the Query Cache. See :ref:`query-cach
 -  Boolean
 -  Default: no
 
-Do not attempt to read the configuration file.
+Do not attempt to read the configuration file. Useful for configuration
+by parameters from the command line only.
 
 .. _setting-no-shuffle: