Update CONTRIBUTING.md

Author: api0cradle

CONTRIBUTING.md

@@ -4,4 +4,9 @@ First, thank you for contributing!
 
 When submitting new LOLs, please submit a `yml` sourcefile (`yml/`) as these are used to generate everything else. Next, review `README.md` and ensure that your LOL meets the criteria--interesting or unexpected functionality that would be useful to an attacker.
 
-There's nothing special about the format. Just base your entry off an existing one and modify as required. Please ensure that you do not add or remove any of the fields; all are required.
+There's nothing special about the format. Just base your entry off an existing one and modify as required. Please ensure that you do not add or remove any of the fields; all are required.   
+
+There is a template that can be used located here if you do not want to copy one of the existing LOLs: https://github.com/LOLBAS-Project/LOLBAS/blob/master/YML-Template.yml   
+It is also important to use these (https://github.com/LOLBAS-Project/LOLBAS/blob/master/CategoryList.md) categories, since they relate to the web portal and it is crucial to get them right for everything to work.
+
+Looking forward for your contributions.