Update COLLABORATING.md

COLLABORATING.md

 ## Reviewing
 Please work through the following checklist when reviewing a project: 
 
-- Tag pull requests with the most relevant label(s).
-- Validate URLs work correctly and don't point to anything malicious.
 - Ensure suggestions adhere to [CONTRIBUTING](https://github.com/ziadoz/awesome-php/blob/master/CONTRIBUTING.md).
+- Validate URLs work correctly and don't point to anything malicious.
+- Two approvals per pull request is preferred, but not required.
+- Simple pull requests fixing typos, formatting and broken links can be merged with a single approval.
 
 ## Enhancements
 If you have an idea on how to improve the project, please open a ticket for discussion using the `Enhancement` label. Please don’t make any broad or sweeping changes without consulting other collaborators first and reaching a consensus.
 ## Join
 If you want to help out please send an email to my Github username [at] gmail [dot] com with the subject “Awesome PHP Collaborator and a link to your Github account and I’ll get back to you as soon as I can (I'm notoriously slow, sorry).
 
-Thank you for taking the time to help out with Awesome PHP, your help is appreciated!
+Thank you for taking the time to help out with Awesome PHP, your help is appreciated!