Fix readme typo

README.md

@@ -0,0 +1,15 @@
+# slidge voipms
+
+A [voip.ms](https://voip.ms) to [XMPP](https://xmpp.org) puppetering 
+[gateway](https://xmpp.org/extensions/xep-0100.html), based on
+[slidge](https://slidge.im).
+
+## Installation
+
+Refer to the [slidge admin documentation](https://slidge.im/core/admin/)
+for general info on how to set up an XMPP server component.
+
+### Containers
+
+Containers are not available on docker.io yet, but can be built locally from the Dockerfile.
+The docker-compose.yml will bring up a development instance of slidge and prosody.