Clarify the README further.

README.md

 ## Embedding Oppia explorations in the OpenEdX platform
 
-This XBlock is packaged in the standard way as other third-party XBlock
-contributions to the OpenEdX platform. Consult the latest OpenEdX documentation
-for installation instructions.
-
-To get started, download the contents of this repository to a folder on your
-local machine, and deploy it following the instructions in [this tutorial](http://opencraft.com/doc/edx/xblock/tutorial.html#deploying-to-edx-platform).
-
-Note that you will need to add the value "oppia" to the `advanced_modules`
-field in Studio's 'Advanced Settings' menu.
+This XBlock is packaged in the standard way as other third-party XBlock contributions to the OpenEdX platform. Please consult the latest OpenEdX documentation for installation instructions. There is also a useful tutorial [here](http://opencraft.com/doc/edx/xblock/tutorial.html#deploying-to-edx-platform).
 
 Notes:
 
-(1) On devstack, the XBlock does not show up in Studio as a live preview in the
-    editor. However, it does show up in the LMS.
-(2) If you wish to record events, you can do so by modifying the _log() method
-    in the oppia.py file.
+1. You will need to add the value "oppia" to the `advanced_modules` field in Studio's 'Advanced Settings' menu.
+2. On devstack, the XBlock does not show up in Studio as a live preview in the editor. However, it does show up in the LMS.
+3. If you wish to record events, you can do so by modifying the `_log()` method in the `oppia.py` file.