docs(tutorial/step-0): remove hyphen and clarify items

Closes angular#5953

Author: petebacondarwin

docs/content/tutorial/step_00.ngdoc

@@ -88,8 +88,10 @@ being the element on which the `ngApp` directive was defined.
 
           Nothing here {{'yet' + '!'}}
 
-  This line demonstrates the core feature of Angular's templating capabilities – a binding, denoted
-  by double-curlies `{{ }}` as well as a simple expression `'yet' + '!'` used in this binding.
+  This line demonstrates two core features of Angular's templating capabilities:
+
+    * a binding, denoted by double-curlies `{{ }}`
+    * a simple expression `'yet' + '!'` used in this binding.
 
   The binding tells Angular that it should evaluate an expression and insert the result into the
   DOM in place of the binding. Rather than a one-time insert, as we'll see in the next steps, a