Update index.html

Changes the page title and description to refer to the purpose of this site, rather than Two Factor Auth
Update CONTRIBUTING.md

Initial pruning of the CONTRIBUTING.md file to remove overt references and links to 2FA.org -- will need updated to reference the actual desired format of the table for password policies
Merge branch 'master' into gh-pages
Merge branch 'gh-pages' of github.com:hoovercj/perfectpass into gh-pages