Liveblocks in Yjs README

Signed-off-by: Steven Fabre <hello@stevenfabre.com>

README.md

@@ -140,6 +140,10 @@ Also includes a peer-sync mechanism to catch up on missed updates.
 an append-only log of CRDT local updates (hypercore). Multifeed manages and sync
 hypercores and y-dat listens to changes and applies them to the Yjs document.
 </dd>
+  <dt><a href="https://github.com/liveblocks/liveblocks">@liveblocks/yjs</a></dt>
+  <dd>
+<a href="https://liveblocks.io/document/yjs">Liveblocks Yjs</a> provides a fully hosted WebSocket infrastructure and persisted data store for Yjs documents. No configuration or maintenance is required. It also features Yjs webhook events, REST API to read and update Yjs documents, and a browser DevTools extension.
+  </dd>
   <dt><a href="https://github.com/yousefED/matrix-crdt">Matrix-CRDT</a></dt>
   <dd>
 Use <a href="https://www.matrix.org">Matrix</a> as an off-the-shelf backend for