parameters: Reorder table so required params are first, optional are …

…next, and the non-normative one is last.

index.html

@@ -859,13 +859,16 @@ <h2>DID Parameters</h2>
           <tbody>
             <tr>
               <td>
-<code>hl</code>
+<code>relative-ref</code>
               </td>
               <td>
-A resource hash of the <a>DID document</a> to add integrity protection, as
-specified in [[?HASHLINK]]. This parameter is non-normative. Support for this
-parameter is OPTIONAL. If present, the associated value MUST be an
-<a data-lt="ascii string">ASCII string</a>.
+A relative URI reference according to <a
+data-cite="RFC3986#section-4.2">RFC3986 Section 4.2</a>
+that identifies a resource at a <a>service endpoint</a>, which is selected from
+a <a>DID document</a> by using the <code>service</code> parameter. Support for
+this parameter is REQUIRED. The associated value MUST be an <a data-lt="ascii
+string">ASCII string</a> and MUST use percent-encoding for certain characters
+as specified in <a data-cite="RFC3986#section-2.1">RFC3986 Section 2.1</a>.
               </td>
             </tr>
             <tr>
@@ -889,7 +892,6 @@ <h2>DID Parameters</h2>
 data-lt="ascii string">ASCII string</a>.
               </td>
             </tr>
-
             <tr>
               <td>
 <code>version-time</code>
@@ -905,19 +907,15 @@ <h2>DID Parameters</h2>
 normalized to UTC 00:00, as indicated by the trailing "Z".
               </td>
             </tr>
-
             <tr>
               <td>
-<code>relative-ref</code>
+<code>hl</code>
               </td>
               <td>
-A relative URI reference according to <a
-data-cite="RFC3986#section-4.2">RFC3986 Section 4.2</a>
-that identifies a resource at a <a>service endpoint</a>, which is selected from
-a <a>DID document</a> by using the <code>service</code> parameter. Support for
-this parameter is REQUIRED. The associated value MUST be an <a data-lt="ascii
-string">ASCII string</a> and MUST use percent-encoding for certain characters
-as specified in <a data-cite="RFC3986#section-2.1">RFC3986 Section 2.1</a>.
+A resource hash of the <a>DID document</a> to add integrity protection, as
+specified in [[?HASHLINK]]. This parameter is non-normative. Support for this
+parameter is OPTIONAL. If present, the associated value MUST be an
+<a data-lt="ascii string">ASCII string</a>.
               </td>
             </tr>
           </tbody>