language
More language/spelling.
Merge pull request #2 from KwadroNaut/master

Spelling/language
Merge changes from micah
added a table of contents
added introduction to self hosted section
added initial discussion of limitations to many of the projects, and filled out the introduction to the infrastructure section.
added a section on common problems
expanding introduction to the mail client and peer-to-peer sections.
updated TOC
forth/fourth typo
Merge pull request #3 from minrk/patch-1

forth/fourth typo
added changes from feedback by @dymaxion
Merge branch 'master' of ssh://github.com/OpenTechFund/secure-email

Conflicts:
	README.md
added more TOFU text.
Added Redecentralize networks link.
Merge pull request #6 from OliverCole/master

Added Redecentralize networks link.
fix spelling of loss
pluralization fix