title caps

Author: danepowell

contributing/code/conventions.rst

@@ -235,7 +235,7 @@ This task is mandatory and must be done in the same pull request.
 
 .. _`@-silencing operator`: https://www.php.net/manual/en/language.operators.errorcontrol.php
 
-Naming commands and options
+Naming Commands and Options
 ---------------------------
 
 Commands and their options should be named and described using the English