Add missing details

.github/workflows/main.yml

@@ -10,3 +10,7 @@ jobs:
         with:
           compose-file: './docker/docker-compose.yml'
           down-flags: '--volumes'
+      - uses: ./
+        with:
+          compose-file: './docker/docker-compose.yml'
+          up-one: 'helloworld'

README.md

@@ -12,6 +12,9 @@ This action runs your docker-compose file and clean up before action finished.
 
 **Optional** Used to specify flags to pass to the `docker-compose down` command during cleanup. Default is none. Can be used to pass the `--volumes` flag, for example, if you want persistent volumes to be deleted as well during cleanup. A full list of flags can be found in the [docker-compose down documentation](https://docs.docker.com/compose/reference/down/).
 
+### `up-one`
+
+**Optional** Just perform `docker-compose up` to one service instead of all of them
 
 ## Example usage
 
@@ -21,6 +24,6 @@ steps:
   - uses: actions/checkout@v2
   - uses: isbang/compose-action@v1.0.0
     with:
-      compose-file: './docker/docker-compose.yml'
+      compose-file: "./docker/docker-compose.yml"
-      down-flags: '--volumes'
+      down-flags: "--volumes"
 ```

action.yml

@@ -9,6 +9,10 @@ inputs:
     description: 'additional options to pass to `docker-compose down` command'
     required: false
     default: ''
+  down-flags:  # id of input
+    description: 'service to perform docker-compose up'
+    required: false
+    default: ''
 runs:
   using: 'node12'
   main: 'main.js'