Merge pull request #446 from pllim/readme-toc

Add TOC to README

Author: pllim

README.md

@@ -2,5 +2,11 @@
 
 Documents and policies regarding the Astropy Project as a whole. Other directories can be created as needed to maintain organization, but as a general guideline a new directory should not be created unless it contains (or will contain) at least 3 files.
 
-Additionally, the issue tracker will be used to discuss larger Project-wide issues; i.e., those that are not particular to a specific pacakge or other repository.
+* `affiliated`: Astropy Affiliated Package review policies and guidelines.
+* `finance`: Astropy Finance Committee policies, proposals, and other documents.
+* `infrastructure`: Astropy infrastructure documents.
+* `messages`: Templates for communications related to current active policies.
+* `policies`: Astropy Project policies, including but not limited to roles, elections, and permissions.
+* `roadmap`: Astropy Project roadmap, to be updated annually at the Astropy Coordination Meeting.
 
+Additionally, the issue tracker will be used to discuss larger Project-wide issues; i.e., those that are not particular to a specific pacakge or other repository.