Fix markup descriptions of amendments 31 and 47

amendments.json

@@ -679,7 +679,7 @@
       "id": 30
     }
   ],
-  "setcodecparameters-algorithm": [
+  "codecmatch-algorithm": [
     {
       "description": "Fix ambiguities in the setCodecPreferences() algorithm",
       "pr": 2847,
@@ -689,7 +689,6 @@
       "testUpdates": "already-tested",
       "type": "correction",
       "status": "candidate",
-      "difftype": "append",
       "id": 31
     },
     {
@@ -703,7 +702,6 @@
       ],
       "type": "correction",
       "status": "candidate",
-      "difftype": "append",
       "id": 47
     }
   ],

base-rec.html

@@ -11102,8 +11102,7 @@ <h4 id="methods-8">
                   When <a data-link-type="idl" data-lt="setCodecPreferences()" href="#dom-rtcrtptransceiver-setcodecpreferences" class="internalDFN" id="ref-for-dom-rtcrtptransceiver-setcodecpreferences-6"><code><code>setCodecPreferences</code></code></a><code>()</code> in invoked, the <a href="#dfn-user-agent" class="internalDFN" data-link-type="dfn" id="ref-for-dfn-user-agent-11">user
                   agent</a> <em class="rfc2119">MUST</em> run the following steps:
                 </p>
-		</div>
-                <ol id="setcodecparameters-algorithm">
+                <ol>
                   <li class="no-test-needed">
                     <p>
                       Let <var>transceiver</var> be the <a data-link-type="idl" href="#dom-rtcrtptransceiver" class="internalDFN" id="ref-for-dom-rtcrtptransceiver-66"><code><code>RTCRtpTransceiver</code></code></a>
@@ -11174,7 +11173,8 @@ <h4 id="methods-8">
                     </p>
                   </li>
                 </ol>
-		<div id="setcodecparameters-algorithm"></div>
+		</div>
+		<div id="codecmatch-algorithm"><!-- added as anchor to new algo in revised spec --></div>
                 <div class="note" role="note" id="issue-container-generatedID-47"><div role="heading" class="note-title marker" id="h-note-47" aria-level="5"><span>Note</span></div><p class="">
                   If set, the offerer's codec preferences will decide the order
                   of the codecs in the offer. If the answerer does not have any

webrtc.html

@@ -11419,7 +11419,7 @@ <h2>
                   </li>
                 </ol>
 		</div>
-                <div  id="setcodecparameters-algorithm">
+                <div id="codecmatch-algorithm">
                 <p>  The <dfn class="export">codec dictionary match</dfn> algorithm
                   given two {{RTCRtpCodec}} dictionaries
                   <var>first</var> and <var>second</var> is as follows: