Readme.mdown in brewdler-0.1.0 vs Readme.mdown in brewdler-0.2.0

@@ -2,11 +2,11 @@
 
 Bundler for non-ruby dependencies from homebrew
 
 ## Requirements
 
-[Homebrew]()
+[Homebrew](http://github.com/mxcl/homebrew) is used for installing the dependencies, it only works on a mac and so does this gem.
 
 ## Usage
 
 Install using rubygems:
 
@@ -20,13 +20,22 @@
 
     redis
     mongodb
     sphinx
     imagemagick
+    mysql
 
 You can then easily install all of the dependencies on a new mac like so:
 
     $ brewdle install
+
+## Note
+
+Homebrew does not support installing specific versions of a library, only the most recent one so there is no good mechanism for storing installed versions in a .lock file.
+
+If your software needs specific versions then perhaps you'll want to look at using [Vagrant](http://vagrantup.com/) to better match your development and production environments.
+
+(Or there is always Macports...)
 
 ## Development
 
 Source hosted at [GitHub](http://github.com/andrew/brewdler).
 Report Issues/Feature requests on [GitHub Issues](http://github.com/andrew/brewdler/issues).
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