README.md in nutrella-0.4.0 vs README.md in nutrella-0.5.0

@@ -1,13 +1,23 @@
 # Nutrella
 
 [![Gem Version](https://badge.fury.io/rb/nutrella.svg)](https://badge.fury.io/rb/nutrella)
 [![Code Climate](https://codeclimate.com/github/amckinnell/nutrella/badges/gpa.svg)](https://codeclimate.com/github/amckinnell/nutrella)
+[![GitHub license](https://img.shields.io/github/license/mashape/apistatus.svg)]()
 
-A command line tool for creating a Trello board based on the current git branch.
+A command line tool for associating a Trello board with the current git branch.
 
+## Table of Contents
 
+* [Installation](#installation)
+* [Troubleshooting](#troubleshooting)
+* [Usage](#usage)
+* [Origin of Name](#origin-of-name)
+* [Contributing](#contributing)
+* [License](#license)
+
+
 ## Installation
 
 **Step 1**: Install gem
 
     $ gem install nutrella
@@ -42,9 +52,28 @@
     token: 4c13558cbafdcb4765103a195e05b0476f3b3f7f3efc83f2a810fb769f4ae2d6
 
     # Optional Configuration
     organization: 542d76ac2fad4697c3e80448
 
+## Troubleshooting
+
+### `method_missing: undefined method 'this'`
+
+Try updating `RubyGems`
+
+```sh
+gem update --system
+```
+
+### `uninitialized constant Gem::Source (NameError)`
+
+Try updating `bundler` 
+
+```sh
+gem install bundler
+```
+
+For more information see the `bundler` [CHANGELOG]( https://github.com/bundler/bundler/blob/master/CHANGELOG.md#1131-2016-09-13)
 
 ## Usage
 
 Create or open a Trello board based on the name of the current git branch: