Add docker instructions to readme

readme.md

@@ -1,20 +1,23 @@
-Running on PagodaBox
+Running with Docker
 ---------------------------
-1. Create a PagodaBox account at https://dashboard.pagodabox.com/account/register.
-2. On the PagodaBox dashboard, click on "New Application".
-3. Select "Clone an Existing Repo".
-4. Give the application a unique name.
-5. Paste the url below as your "Clone URL".
-        https://github.com/ubc/iPeer.git
-6. Click "Launch Application". Wait for the installation to complete.
-7. When you see the links "View Live App" and "Manage Your App" the installation process is complete. Click "Manage Your App".
-8. Click on "View Live App" (right hand side of the dashboard).
-9. Complete the iPeer installation process. Click Next.
-10. Agree to the License Agreement and click Next. 
-11. Select Basic Installation. Click Next.
-12. Create your account under "Super Admin Configuration".
-13. Select your timezone (Region/City). Click Next.
-14. Go to name.gopagoda.com. Login with the "Super Admin" account you have just created.
+### Prerequisites
+* Internet connection
+* [Docker engine](https://docs.docker.com/engine/installation/) and [docker-compose](https://docs.docker.com/compose/install/) installed
+
+### Running
+
+#### Pulling images
+Note: if you are planning to do development, you can skip this step.
+```
+docker pull ubcctlt/ipeer-app
+docker pull ubcctlt/ipeer-web
+```
+
+#### Running iPeer
+
+```
+docker-compose up -d
+```
 
 Running Virtual Development Server
 ---------------------------