Bump up version to 0.1.0
Add how to signup and update to README.md
Update own profile
Signup with name, password, and any other items
Add homepage to gemspec
Homepage is github page.
how to use is added.
Print all user names
Download profiles only with username
Download a specific hacker's profile
Download help page
command with help and me or without any args
Fill in description and summary at README and gemspec