updating readme with docker info

README.md

@@ -7,3 +7,34 @@ This is a generic handler that will accept any form of data and pass it through
 ### Usage
 > POST /slack/{matrixRoom}/{matrixUser}/{matrixPassword}
 This is a Slack-friendly handler that will accept any form of Slack data and pass through just the text to Matrix using the appropriate JSON format.
+
+
+### Docker Usage
+
+#### Prebuilt Image
+There is a prebuilt image already on `registry.linuxrocker.com/matrix-handler:latest`
+
+#### Building Your Own
+
+You can build the image by running 
+
+```bash
+docker build -t myrepo/matrix-handler:latest .
+```
+
+#### Docker Compose
+You can use these settings for deploying via Docker Compose.
+
+```yaml
+version: '3.5'
+services:
+    matrix-handler:
+      image: registry.linuxrocker.com/matrix-handler:latest
+      restart: always
+      container_name: matrix-handler
+      ports:
+      - 3000:3000
+      volumes:
+        - ./config.json:/config/config.json:ro
+```
+

pkg/server/server.go

@@ -17,7 +17,7 @@ import (
 
 // Run ...
 func Run(info *router.BuildInfo) error {
-	conf, err := config.GetConfig("config.json")
+	conf, err := config.GetConfig("/config/config.json")
 	if err != nil {
 		log.Fatal().Err(err)
 	}