add pretty-time-zsh

https://github.com/sindresorhus/pretty-time-zsh
Addded @riupa's v

v is z for vim.
Edit slap editor description: it needs Node.js to run
Add GOOG's shell style guide

Really good resource and guide used by many shops.
Merge pull request #16 from sindresorhus/patch-1

add pretty-time-zsh
Update README.md
Merge pull request #17 from hemanth/patch-1

Addded @riupa's v
Merge pull request #20 from flores/master

Add GOOG's shell style guide
Merge pull request #18 from dborzov/master

Edit slap editor description: it needs Node.js to run
Update README.md
Update README.md
Added transfer.sh in utility section - closes #21
Added ledger to utilities
Merge pull request #22 from chadrien/patch-1

Added transfer.sh in utility section - closes #21
Add sshrc to utilities

bring your .bashrc, .vimrc, etc. with you when you ssh
Merge pull request #24 from bdossantos/sshrc

Add sshrc to utilities
Add more zsh plugins
Merge pull request #25 from myfreeweb/patch-1

Add more zsh plugins
Merge pull request #23 from srijanshetty/master

Added ledger to utilities
Update README.md