Update README

README.md

@@ -1,3 +1,78 @@
 # Monero Multisig Broker
 
 A proof-of-concept broker for Monero multisig messages.
+
+## Usage
+
+### Build
+
+```
+$ make
+```
+
+### Run
+
+```
+$ ./mmb --management-credentials "admin:pass"
+```
+
+### Init multisig topic
+
+The script uses hardcoded ("admin:pass" credentials), if you changed it, do the same in
+`./utils/create_topic.sh`.
+
+```
+$ ./utils/create_topic.sh bob_buyer vendy_vendor
+{
+  "bob_buyer": {
+    "host": "localhost:8080",
+    "topic": "6b7d9e1e-17be-17af-cbfd-0277f5fce77e",
+    "token": "1IXU5w4T2qYjtZ0z6K"
+  }
+}
+{
+  "vendy_vendor": {
+    "host": "localhost:8080",
+    "topic": "6b7d9e1e-17be-17af-cbfd-0277f5fce77e",
+    "token": "u806D1df4TI2GxhNmc"
+  }
+}
+```
+
+### Push messages
+
+Push message as `bob_buyer`.
+
+```
+$ ./utils/push_message.sh 6b7d9e1e-17be-17af-cbfd-0277f5fce77e 1IXU5w4T2qYjtZ0z6K
+```
+
+Push message as `vendy_vendor`.
+
+```
+$ ./utils/push_message.sh 6b7d9e1e-17be-17af-cbfd-0277f5fce77e u806D1df4TI2GxhNmc
+```
+
+### List messages
+
+```
+$ ./utils/list_messages.sh 6b7d9e1e-17be-17af-cbfd-0277f5fce77e u806D1df4TI2GxhNmc
+[
+  {
+    "index": 0,
+    "sender": "bob_buyer",
+    "content_type": "application/json",
+    "content": {
+      "body": "hello world!"
+    }
+  },
+  {
+    "index": 1,
+    "sender": "vendy_vendor",
+    "content_type": "application/json",
+    "content": {
+      "body": "hello world!"
+    }
+  }
+]
+```