Improve installation instructions on README

Change directory to allow `heroku create` automatically add a `heroku`
git remote.
Comment in a command run by Zsh is interpreted as part of the code,
giving a `Invalid arguments` error.
Added a getting started section under development
Merge pull request #24 from warmwaffles/readme-update

Added a getting started section under development
Merge pull request #23 from Irio/master

Improve installation instructions on README
Swap "j" and "k" to move down/up instead of up/down.

j/k always was for down/up in google reader
which is same as in vim.
Merge pull request #30 from cnu/master

Swap "j" and "k" to move down/up instead of up/down.
update shortcut docs.
add instructions for updating to README, closes #35 [ci skip]
remove heroku.json - not ready for primetime :( [ci skip]
Keyboard shortcut now opens first story. (Fixes #31.)
Merge pull request #39 from shipstar/master

Keyboard shortcut now opens first story.
Merge branch 'master' of github.com:swanson/stringer
set cursor selection when opening story, closes #31
i18n implemented. en.yml translation file not finished yet, just a reference.
Added an Archive method to the Stories controller and Repository
Added archive button to the headers
Added full i18n support and extracted texts to en.yml file.
Added archive buttons and style
Removing will_paginate from bundle
Reworked shortcuts / next & previous

- next and previous shortcut now toggle story
- when a story is toggled, screen is scrolled
- added b as a shortcut to open permalink to match Reeder shortcuts
- permalink now targets _blank