improve docs

README.md

@@ -5,6 +5,7 @@ Reusable renovate configs, covering a number of use cases and opinionated "best
 Usage:
 
 Your renovate.json
+
 ```json
 {
   "extends": [
@@ -30,3 +31,7 @@ Requires values to be in the "./values" directory. Supports both yaml and yaml.g
 ## Action
 
 Keeps your Gitea actions up-to-date. Also always pins to a commit hash, prevening attack vectors utilizing tag reusal.
+
+## Docker Compose
+
+Keeps Docker Compose service images up-to-date. Also always pins to a digest hash.