new scheme for different platforms
.
email validation
improve README instructions so they are step-by-step and accurate
Merge pull request #480 from colkito/fix/platforms-scheme

new scheme for different platforms
Merge pull request #483 from ryanxcharles/feature/improve-install-instructions

improve README instructions so they are step-by-step and accurate
Merge pull request #484 from colkito/fix/backup-email-validation

email validation