Update wordpress-coding-standards/javascript.md

Co-authored-by: Gary Jones <github@garyjones.io>

Author: SavPhill

wordpress-coding-standards/javascript.md

@@ -285,7 +285,7 @@ window.wp = window.wp || {};
 
 ## Naming Conventions
 
-Variable and function names should be full words, using camel case with a lowercase first letter. This is an area where this standard differs from the WordPress PHP coding standards.
+Variable and function names should be full words, using camel case with a lowercase first letter. This is an area where this standard differs from the [WordPress PHP coding standards](https://developer.wordpress.org/coding-standards/wordpress-coding-standards/php/#naming-conventions).
 
 Names should be descriptive, but not excessively so. Exceptions are allowed for iterators, such as the use of `i` to represent the index in a loop.