Update README.rst

See jjjake/ia-wrapper#16
Ongoing work on docs...
rm
Update README.rst

Closes jjjake/ia-wrapper#16
Merge pull request #18 from rajbot/master

Update documentation.
Fixed link formatting.
Updated docstrings, and added __repr__ object description to Item class.
Added description and link to API documentation on readthedocs.org.
Added link back to github for reporting issues.
Upped version.
Fixed variable name for secret_key.
Changed variable name.
Exit with `ia <command> --help` if anything goes wrong. Added `--debug` option as well, to print any tracebacks/exceptions to terminal.
Merge branch 'master' of github.com:jjjake/ia-wrapper
upped version.
Decode JSON to a string before printing to stdout.