Update readme.

README.md

@@ -7,14 +7,18 @@ Text-to-speech incorporates espeak.
 
 ## Installation
 
-Regardless of your operating system, you'll need your ruby environment set up first. Specifically, you'll need Ruby and Bundler.
+Regardless of your operating system, you'll need your ruby environment set up first. Specifically, you'll need Ruby, rbenv, and Bundler ```gem install bundler```.
 
 ### OSX
 Install homebrew.
 ```
 /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
 ```
 
+Install rbenv. ```brew install rbenv```
+
+Install bundler. ```gem install bundler```
+
 Next, install pocketsphinx-ruby's dependencies for voice recognition. (More detailed instructions here: https://github.com/watsonbox/pocketsphinx-ruby#installation)
 ```
 $ brew tap watsonbox/cmu-sphinx
@@ -24,7 +28,6 @@ $ brew install --HEAD watsonbox/cmu-sphinx/cmu-pocketsphinx
 
 Next, install espeak.
 ```
-$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null
 $ brew install espeak
 ```
 
@@ -366,4 +369,4 @@ undo last wire sequence    - removes the previous spoken wire sequence command
 ```
 The bomb is defused. / We did it!        - cue a happy success response
 The bomb detonated. / The bomb blew up.  - cue an upset failure response
-```
+```