updated readme

README.md

@@ -3,21 +3,50 @@
 
 ## Be forwarned: Atom is pre-alpha software!
 
-## Installation
+## Download
 
-1. Get [xcode 4.2](http://itunes.apple.com/us/app/xcode/id448457090?mt=12).
+1. Download [atom.zip](https://github.com/downloads/github/atom/atom.zip)
 
-2. Clone atom from github/atom.
+2. Unzip and open the app
 
-3. Open Atom.xcodeproject.
+## Basic Keyboard shortcuts
 
-4. Press cmd-r to build and run.
+`cmd-o` : open file/directory
+`cmd-n` : new window
+`cmd-alt-ctrl-s` : run specs
+`cmd-t` : open fuzzy finder
+`cmd-:` : open command prompt
+`cmd-f` : open command prompt with /
+`cmd-g` : repeat the last search
+`cmd-alt-w` : toggle word wrap
+`cmd-alt-f` : fold selected lines
 
-## Informative Links
+Most default OS X keybindings also work.
 
-* [Ace](https://github.com/ajaxorg/ace)
+## Command Panel
 
-* [commonjs](http://wiki.commonjs.org)
+A partial implementation of the [Sam command language](http://man.cat-v.org/plan_9/1/sam)
 
-* [JSCocoa](https://github.com/parmanoir/jscocoa/)
-fin
+*Examples*
+`,` selects entire file
+`1,4` selects lines 1-4
+`/pattern` selects the first match after the cursor/selection
+`s/pattern/replacement` replace first text matching pattern in current selection
+`s/pattern/replacement/g` replace all text matching pattern in current selection
+`,s/pattern/replacement/g` replace all text matching pattern in file
+`1,4s/pattern/replacement` replace all text matching pattern in lines 1-4
+`x/pattern` selects all matches in the current selections
+`,x/pattern` selects all matches in the file
+`,x/pattern1/ x/pattern2` "structural regex" - selects all matches of pattern2 inside matches of pattern1
+
+## Build from source
+
+1. Get [xcode 4.2](http://itunes.apple.com/us/app/xcode/id448457090?mt=12)
+
+2. Install CoffeeScript http://coffeescript.org/ (try `npm i -g coffee-script`)
+
+3. `git clone git@github.com:github/atom.git`
+
+4. `cd atom`
+
+5. `rake run`