Add missing }

index.html

@@ -116,15 +116,15 @@ <h2>Error handling</h2>
         {{RTCRtpEncodingParameters/scalabilityMode}} value is outside this envelope.
         When {{RTCRtpTransceiverInit/sendEncodings}} is used to
         request the sending of multiple simulcast streams using
-        {{RTCPeerConnection/addTransceiver()}, it is not possible to
+        {{RTCPeerConnection/addTransceiver()}}, it is not possible to
         configure the sending of "S" scalability modes. The browser
         may only be configured to send simulcast encodings with
         multiple SSRCs and RIDs, or alternatively, to send all
         simulcast encodings on a single RTP stream. Attempting to
         simultaneously utilize both simulcast transport
         techniques MUST return {{OperationError}} in
         {{RTCRtpSender/setParameters()}} or
-        {{RTCPeerConnection/addTransceiver()}.
+        {{RTCPeerConnection/addTransceiver()}}.
       </p>
     </section>
     <section id="negotiation">