added commas to help file

Author: Jami Cogswell

java/ql/src/Security/CWE/CWE-489/DebuggableAttributeEnabled.qhelp

@@ -9,15 +9,15 @@ In this file, the <code>android:debuggable</code> attribute of the <code>applica
 define whether or not the application can be debugged. When set to <code>true</code>, this attribute will allow the
 application to be debugged even when running on a device in user mode.</p>
 
-<p>When a debugger is enabled it could allow for entry points in the application or reveal sensitive information.
+<p>When a debugger is enabled, it could allow for entry points in the application or reveal sensitive information.
 As a result, <code>android:debuggable</code> should only be enabled during development and should be disabled in
 production builds.</p>
 
 </overview>
 <recommendation>
 
-<p>In Android applications either set the <code>android:debuggable</code> attribute to <code>false</code>
-or do not include it in the manifest. The default value when not included is <code>false</code>.</p>
+<p>In Android applications, either set the <code>android:debuggable</code> attribute to <code>false</code>,
+or do not include it in the manifest. The default value, when not included, is <code>false</code>.</p>
 
 </recommendation>
 <example>