Entering last of Gina's comments

Signed-off-by: Mary Anthony <mary@blockstack.com>

_develop/mining_enroll.md

@@ -4,9 +4,9 @@ permalink: /:collection/:path.html
 ---
 # How to enroll in App Mining
 
-Application mining pays developers for building decentralized applications
-(DApps). Enrolling in App Mining also makes your application eligible for
-rewards.
+Application mining rewards developers for building decentralized applications
+(DApps). You must enroll your application to be eligible for these
+rewards. This section explains the enrollment process and covers the following topics:
 
 * TOC
 {:toc}
@@ -17,10 +17,7 @@ rewards.
 
 ## Complete the add and submission forms on App.co
 
-Make sure you enroll at least one business week in advance of the month you
-would first like your app to complete.  You need only enroll in App Mining once.  A single
-submission enrolls your app in the month you submit and every month following
-automatically.
+Make sure you enroll in advance of the month you would first like your app to complete.  You need only enroll in App Mining once.  A single submission enrolls your app in the month you submit and every month following automatically.
 
 To apply, do the following:
 

_includes/required-fields.md

@@ -35,7 +35,7 @@
       </tr>
       <tr>
         <td><strong>Twitter Handle</strong></td>
-        <td>Optionally enter a Twitter handle if you have one.</td>
+        <td>Optionally enter a Twitter handle for your application, for example `@coolapp`.</td>
       </tr>
       <tr>
         <td><strong>Category</strong></td>