Update changelog and readme

CHANGELOG.md

@@ -8,11 +8,14 @@
   have been updated with instructions for creating a bot.
 * Added support for relaying messages for unauthenticated users using a webhook.
   See [docs](https://docs.mau.fi/bridges/go/discord/relay.html) for instructions.
+* Added commands to bridge and unbridge channels manually.
 * Added `ping` command.
 * Added support for gif stickers from Discord.
 * Changed mention bridging so mentions for users logged into the bridge use the
   Matrix user's MXID even if double puppeting is not enabled.
 * Actually fixed ghost user info not being synced when receiving reactions.
+* Fixed uncommon bug with sending messages that only occurred after login
+  before restarting the bridge.
 * Fixed guild name not being synced immediately after joining a new guild.
 * Fixed variation selectors when bridging emojis to Discord.
 

README.md

@@ -8,7 +8,8 @@ All setup and usage instructions are located on [docs.mau.fi]. Some quick links:
 
 * [Bridge setup](https://docs.mau.fi/bridges/go/setup.html?bridge=discord)
   (or [with Docker](https://docs.mau.fi/bridges/general/docker-setup.html?bridge=discord))
-* Basic usage: [Authentication](https://docs.mau.fi/bridges/go/discord/authentication.html)
+* Basic usage: [Authentication](https://docs.mau.fi/bridges/go/discord/authentication.html),
+  [Relaying with webhooks](https://docs.mau.fi/bridges/go/discord/relay.html)
 
 ### Features & Roadmap
 [ROADMAP.md](https://github.com/mautrix/discord/blob/main/ROADMAP.md)