Fix typos in rails_backend.md

js-rails/rails_backend.md

@@ -8,16 +8,16 @@ Note that you can actually outsource your back end functionality to a Backend-as
 ### Learning Outcomes
 
 * Refresher -- how do you set up a basic Rails app?
-* Refresher -- how to you load custom Javascript in a given Rails view page?
+* Refresher -- how do you load custom Javascript in a given Rails view page?
 * How does "unobtrusive Javascript" work?
 * How can you pass data from your Rails app to your Javascript?
-* Why would you want to use AJAX to load large batches of data
+* Why would you want to use AJAX to load large batches of data?
 
 ### Assignment
 
 <div class="lesson-content__panel" markdown="1">
 1. [Check out "Using Javascript in your Rails App" from Daniel Kehoe](http://railsapps.github.io/rails-javascript-include-external.html).  It is long and covers a lot of ground, but it's got great content.  Some of the stuff on dependencies can be skimmed, but pay attention to the `content_for` stuff at the bottom.
-2. [Refresh yourself on Rails AJAX from RailsGuides](http://edgeguides.rubyonrails.org/working_with_javascript_in_rails.html) (just skim the top few sections)
+2. [Refresh yourself on Rails AJAX from RailsGuides](http://edgeguides.rubyonrails.org/working_with_javascript_in_rails.html) (just skim the top few sections).
 2. Read [Bootstrapping JSON data into a Rails View](http://jfire.io/blog/2012/04/30/how-to-securely-bootstrap-json-in-a-rails-view) to learn about passing data to your front end.
 </div>