edited header html
Fixed list formatting in README

The double slashes are now hyphens for a Markdown unordered list.
Changed descriptions in README

-The descriptions of the views underneath the update log were not accurate
-Now they reflect the features that our app actually has, or features that it will eventually have
-The final version should be updated accordingly.
Fixed numbered list formatting in README
Formatting README

-Fixed Markdown links and list format
-Added Known Issues sections to Project Assignments 4 and 5
Tim said that we should explain in the README what we were trying to do and what wasn't working, even if a feature that we try to add never ends up working.
Fixed formatting typos in README
Changed name and location of database store
socket can now get author and privacy of post

-In preparation for storing posts to the database
-Used jQuery to grab author's name from header.ejs
-Used jQuery to get whether 'private' checkbox was checked