Added section on Creating an AppEngine instance

GettingStarted.wiki

diff --git a/GettingStarted.wiki b/GettingStarted.wiki
index 98a8a23..9f30c05 100644
--- a/GettingStarted.wiki
+++ b/GettingStarted.wiki
@@ -33,9 +33,21 @@
 thirdparty/google_appengine/dev_appserver.py --allow_skipped_files build
 }}}
 
+== Creating an !AppEngine instance ==
+
+If you do not already have an !AppEngine instance, follow these steps, otherwise you can skip this part.
+
+ * Go to http://www.appspot.com and sign in with a Google Account
+ * Click "Create an application"
+ * Verify your account if prompted
+ * In the "Create an Application" page, fill in an identifier (cannot be changed), you will need this later on when deploying
+ * Fill in a title (can be changed later)
+ * Set the "Authentication Options" on either "Open to all Google Accounts users (default)" or "Restricted to the following Google Apps domain".
+ * Hit "Create Application"
+
 == Deploying to your own instance ==
 
-Assuming you have an AppEngine instance called 'your-melange-instance'
+Assuming you have an !AppEngine instance called 'your-melange-instance'
 
 {{{
 scripts/gen_app_yaml.py -f your-melange-instance &&