docs: fix webrtc-star link (#3571)

- fixes a broken link in docs
- replaces deprecated webrtc-star used for demo purposes with two redundant ones

docs/BROWSERS.md

@@ -38,7 +38,7 @@ We provide a few additional components useful for running JS IPFS in the browser
 
 
 - [libp2p-webrtc-star](https://github.com/libp2p/js-libp2p-webrtc-star) - incorporates both a transport and a discovery service that is facilitated by the custom rendezvous server available in the repo
-  - Instructions on enabling `webrtc-star` in js-ipfs config can be found [here](https://github.com/ipfs/js-ipfs#how-to-enable-webrtc-support-for-js-ipfs-in-the-browser).
+  - Instructions on enabling `webrtc-star` in js-ipfs config can be found [here](https://github.com/ipfs/js-ipfs/blob/master/docs/FAQ.md#how-to-enable-webrtc-support-for-js-ipfs-in-the-browser).
   - Make sure to [run your own rendezvous server](https://github.com/libp2p/js-libp2p-webrtc-star#rendezvous-server-aka-signalling-server).
 - [libp2p-webrtc-direct](https://github.com/libp2p/js-libp2p-webrtc-direct) - a WebRTC transport that doesn't require the set up a signalling server.
   - Caveat: you can only establish Browser to Node.js and Node.js to Node.js connections.

docs/FAQ.md

@@ -51,7 +51,8 @@ const node = await IPFS.create({
   config: {
     Addresses: {
       Swarm: [
-        '/dns4/wrtc-star.discovery.libp2p.io/tcp/443/wss/p2p-webrtc-star'
+        '/dns4/wrtc-star1.par.dwebops.pub/tcp/443/wss/p2p-webrtc-star',
+        '/dns4/wrtc-star2.sjc.dwebops.pub/tcp/443/wss/p2p-webrtc-star'
       ]
     }
   }
@@ -82,7 +83,8 @@ const node = await IPFS.create({
       Swarm: [
         "/ip4/0.0.0.0/tcp/4002",
         "/ip4/127.0.0.1/tcp/4003/ws",
-        "/dns4/wrtc-star.discovery.libp2p.io/tcp/443/wss/p2p-webrtc-star"
+        "/dns4/wrtc-star1.par.dwebops.pub/tcp/443/wss/p2p-webrtc-star",
+        "/dns4/wrtc-star2.sjc.dwebops.pub/tcp/443/wss/p2p-webrtc-star"
       ]
     }
   },