Add link to new Git resources list

Author: meowius

README.md

@@ -2,8 +2,9 @@
 
 A personal and growing list of resources I find useful for content design, content strategy, UX and research, and interpersonal communication.
 
-- [Books and reports](https://github.com/meowius/learning/blob/main/books.md)
-- [Trainings and podcasts](https://github.com/meowius/learning/blob/main/training.md)
-- [Communication resources](https://github.com/meowius/learning/blob/main/communication.md)
+- [Books and reports](/books.md)
+- [Trainings and podcasts](/training.md)
+- [Communication resources](/communication.md)
+- [Git and GitHub learning resources](/git-github.md)
 
 See also this useful [crowdsourced Airtable of content and UX resources](https://airtable.com/shrTmPMOH5e6zU3mD/tblzFbGo4oPNxcOWG) including style guides, podcasts, accessibility guidance, courses, writing tips, etc.