Add some scope slides.

Author: RyanMcG

index.html

@@ -175,6 +175,18 @@
           <section data-markdown>
             # Scope
           </section>
+          <section data-markdown>
+            ## Where does it end?
+
+            with functions
+          </section>
+          <section data-markdown>
+            ## Do I need scope?
+
+            * privacy
+            * namespacing
+            * closures are cool
+          </section>
         </section>
         <section data-markdown>
           # Challenge Time