Some incomplete edits.

Began adding articles and fixing formatting issues. Will finish later.
Revert "Some incomplete edits."

This reverts commit 9bb141acdeae71d4344045c3343b1d5673bfc3e5.
Revert "Revert "Some incomplete edits.""

This reverts commit c5e7ad6ecef87b411609ecc53a2f032f2b30a1e2.