Update charter for 2021:

- Removed Media Timed Events TF, now in WICG
- Added Media Integration Guidelines

charters/charter-2021.html

@@ -194,16 +194,13 @@ <h2>Scope</h2>
         </ul>
 
         <p>
-          Within the Media and Entertainment Interest Group, the
-          <a href="https://www.w3.org/2011/webtv/wiki/Main_Page/Media_Timed_Events_TF">Media
-          Timed Events Task Force</a> investigates use cases and technical
-          requirements for improved support for timed events related to audio or
-          video media on the web, where synchronization to a playing audio or
-          video media stream is needed, and makes recommendations for new or
-          changed web APIs to realize these requirements. The Interest Group may
-          create additional task forces to investigate specific topics and
-          develop a common understanding of architectural implications and
-          requirements the topic triggers.
+          The Media and Entertainment Interest Group is currently working on
+          <a href="https://github.com/w3c/me-media-integration-guidelines">Media Integration Guidelines</a>,
+          which aims to document experience and recommendations for application developers
+          dealing with web media APIs, specifically regarding video and audio decoders,
+          across desktop, mobile, and TV devices. Where interoperability issues are found,
+          this may result in issues being raised with the Media Working Group or WHATWG
+          as appropriate.
         </p>
 
         <section id="section-out-of-scope">