doc: cross-link the Doxygen Show Undocumented option from more places.

diff --git a/doc/documentation/doxygen.rst b/doc/documentation/doxygen.rst
index 19515e31e6d3dddd6fc9951940b0241b4a3492f3..494b3b4261672c7b18731c926bebae2a4c1a5777 100644 (file)
--- a/doc/documentation/doxygen.rst
+++ b/doc/documentation/doxygen.rst
@@ -1508,6 +1508,10 @@ positives, this information is not present in the non-verbose output.
     DEBUG:root:dir_22305cb0964bbe63c21991dd2265ce48.xml: neither brief nor
     detailed description present, skipping
 
+Alternatively, there's a possibility to just show everything, however that may
+include also things you don't want to have shown. See
+`Showing undocumented symbols and files`_ for more information.
+
 `Output is not styled`_
 -----------------------