Strip trailing spaces and "on"->"of" language in confidenceMethod.

Author: msporny

index.html

@@ -3918,18 +3918,18 @@ <h3>Reserved Extension Points</h3>
 A property used for specifying one or more methods that a verifier might use to
 increase their confidence that the value of a property in or of a verifiable
 credential or verifiable presentation is accurate. The associated vocabulary
-URL MUST be `https://www.w3.org/2018/credentials#confidenceMethod`. Implementers 
-that are interested in learning more about confidence method, including examples 
-on usage, can refer to the [[[?VC-CONFIDENCE-METHOD]]] specification.
+URL MUST be `https://www.w3.org/2018/credentials#confidenceMethod`. Implementers
+that are interested in learning more about confidence method, including examples
+of usage, can refer to the [[[?VC-CONFIDENCE-METHOD]]] specification.
               </td>
             </tr>
             <tr>
               <td>`renderMethod`</td>
               <td>
 A property used for specifying one or more methods to render a credential into a
 visual, auditory, haptic, or other format. The associated vocabulary URL MUST be
-`https://www.w3.org/2018/credentials#renderMethod`. Implementers that are 
-interested in learning more about render method, including examples of usage, can 
+`https://www.w3.org/2018/credentials#renderMethod`. Implementers that are
+interested in learning more about render method, including examples of usage, can
 refer to the [[[?VC-RENDER-METHOD]]] specification.
               </td>
             </tr>