Made compose file adhere to official specs

README.md

@@ -48,7 +48,7 @@ whatever reason), you can message me through Github issues.
 
 # Usage
 ## Using `docker compose` (Recommended method)
-There is a sample `docker-compose.yml` file in this repository. It contains
+There is a sample `compose.yaml` file in this repository. It contains
 everything needed for a basic install. You can use it as a base, modifying
 it as needed. Run it with
 ```

compose.yaml

@@ -1,6 +1,5 @@
-version: "3"
 services:
-    url:
+    simply-shorten:
         image: sintan1729/simply-shorten:latest
         restart: unless-stopped
         container_name: simply-shorten