Update README.rdoc
Update README.rdoc
Update README.rdoc

added some readme about what it's for
Update README.rdoc

formatting tweak
Update README.rdoc

some more detail about use-case, method of digest chains etc
Update README.rdoc

minor edits
Update README.rdoc

minor edits
Update README.rdoc

minor edits
Update README.rdoc

minor edits
Update README.rdoc

minor edits
Update README.rdoc

minor edits
Update README.rdoc

minor edits
Update README.rdoc

minor edits
Merge pull request #1 from pacharanero/master

readme updates