diff --git a/README.md b/README.md
index 1fcd6bc..f5a2dcf 100644
--- a/README.md
+++ b/README.md
@@ -49,9 +49,16 @@ When a SMS is received from a new number, a new room is created. If you need to
 a new number, simply type something like `!sms 14065551234` into an existing SMS room. You'll be
 invited to join a new room and will then be able to send your message.
 
+## Chat Commands
+
+Chat commands can be issued in any room the bot is joined to.
+
+* `!sms 1234567890`: Create a new empty SMS room for the provided phone number, and invite all `invitusers` to the room. Texts will send from the `smsfrom` number.
+* `!sms 1234567890 9876543210`: Create a new empty SMS room, and invite all `invitusers` to the room, as above. Texts will send from the second number entered.
+* `!fixusers`: Goes through all the SMS rooms, checking membership against `inviteusers`. If anyone's missing from a room, they're invited back.
+
 ## Known Issues/Limitations
 
-* If you leave a room the bot won't invite you back, even if there are new SMS messages.
 * Any messages posted in a Matrix room while the bot is offline will not be relayed to SMS when it comes back.
 * Only unread SMS are fetched, so if anything else is checking the API this bot won't get those.
 * If it crashes try the latest [Node.js LTS](https://github.com/nodesource/distributions) (v14 as of commit date)
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