Add gossip readme

registry/gossip/README.md

@@ -0,0 +1,24 @@
+# Gossip Registry
+
+Gossip is a zero dependency registry which uses hashicorp/memberlist to broadcast registry information 
+via the SWIM protocol. 
+
+## Usage
+
+Start with the registry flag or env var
+
+```bash
+MICRO_REGISTRY=gossip go run service.go
+```
+
+On startup you'll see something like
+
+```bash
+2018/12/06 18:17:48 Registry Listening on 192.168.1.65:56390
+```
+
+To join this gossip ring set the registry address using flag or env var
+
+```bash
+MICRO_REGISTRY_ADDRESS= 192.168.1.65:56390 
+```