Merge pull request wesbos#18 from rkadam/master

Updated README with more clarity around Powerline fonts installation.

readme.md

@@ -11,6 +11,21 @@ They work well together! You will need to install the patched powerline font as
 ####Step-by-step installation
 1. Drop the `cobalt2.zsh-theme` file in to the `~/.oh-my-zsh/themes/` directory.
 2. Open up your ZSH preferences at `~/.zshrc` and change the theme variable to `ZSH_THEME="cobalt2"`.
+
+3. Install Powerline and necessary fonts, one way is using [PIP](https://en.wikipedia.org/wiki/Pip_(package_manager))
+ * For first time *PIP* users refer to this [PIP installation guide](https://pip.pypa.io/en/stable/installing/)
+ * To install Powerline using pip
+  ```
+pip install --user powerline-status
+  ```
+ * Now install all necessary fonts by downloading or cloning git repository.
+
+  ```
+git clone https://github.com/powerline/fonts
+cd powerline
+./install.sh
+  ```
+
 3. In iTerm2 access the *Preferences* pane on the *Profiles* tab.
 4. Under the *Colors* tab import the `cobalt2.itermcolors` file via the *Load Presets* drop-down.
 5. Under the *Text* tab change the font for each type (*Regular* and *Non-ASCII*) to '**Inconsolata for Powerline**'. (Refer to the [powerline-fonts repo](https://github.com/powerline/fonts) for help on font installation.)