first commit

.github/ghadocs/examples/6_multiple-compose-files.md

@@ -0,0 +1,18 @@
+<!-- markdownlint-disable first-line-heading -->
+
+### Example with multiple compose files
+
+Specify multiple compose files to use with the `docker compose` command. This is
+useful when you have a base compose file and additional files for different
+environments or configurations.
+
+```yaml
+steps:
+  # need checkout before using compose-action
+  - uses: actions/checkout@v3
+  - uses: hoverkraft-tech/compose-action@v1.5.1
+    with:
+      compose-file: |
+        ./docker/docker-compose.yml
+        ./docker/docker-compose.ci.yml
+```