Merge pull request #1 from mu-editor/master

Bring up to date

Author: Martin O'Hanlon

en/howto/install_raspberry_pi.md

@@ -11,10 +11,26 @@ If you're using the Raspberry Pi Foundation's official
 operating system you should use your preferred package management application
 and install `mu-editor`.
 
-If you're familiar with a terminal it's as simple as typing:
+## Step 1
 
+Open a terminal by selecting Accessories and Terminal from the menu
+
+<div class="row">
+  <img src="/img/en/howto/pi_open_terminal.png" alt="pi open terminal" class="img-responsive center-block img-rounded movie"/>
+  <br/>
+</div>
+
+## Step 2
+
+Enter the following command to download and install Mu.
+
+```bash
+sudo apt-get install mu
 ```
-apt-get install mu-editor
-```
 
-Mu should be accessible from the desktop's menu.
+<div class="row">
+  <img src="/img/en/howto/pi_install_mu.gif" alt="pi install mu" class="img-responsive center-block img-rounded movie"/>
+  <br/>
+</div>
+
+Open Mu from by selecting it from the Programming menu.