Add base containers

README.md

@@ -1,2 +1,19 @@
 # Matrix Gateway
 WIP project
+
+
+## Setup dev environment
+```
+mkdir -p storage/postgres storage/synapse
+docker compose up
+```
+
+URLs:
+* Element: http://localhost:8080/
+* Synapse: http://localhost:8448/
+* OpenID configuration: http://127.0.0.1:9001/dex/.well-known/openid-configuration
+
+Auto-created Matrix accounts:
+
+* `admin1` : `admin1`
+* `user1` : `user1`