Additional directions on how to get setup

Many users aren't so savvy with homebrew and were having trouble getting imagemagick installed. I wrote a short blog post on how to get up and running.

README.md

@@ -12,11 +12,11 @@ Gutter Color is a Sublime Text plugin which displays a colored icon for all line
 
 * Install ImageMagick
 * Set the `convert_path` in `Preferences: GutterColor Settings – User` to the location of the ImageMagick `convert` script.
+* For help with either, view [this blog post by Wes Bos](http://wesbos.com/css-gutter-color-sublime-text/)
 
 
 ## TODO
 
 * Add support for SASS/LESS variables
 * Backport to ST2
 * Handle conflicts with GitGutter/VCS Gutter
-*