Merge pull request #1 from mach-composer/feat/docs

feat: added readme

Author: demeyerthom

README.md

@@ -1,3 +1,19 @@
 # check-changie-changes-action
 
-This action checks if a new changelog file has been added in the commits 
+This action checks if a new changelog file has been added in the commits. If not, it will fail the workflow.
+
+## Usage
+
+```yaml
+name: Check changelog changes
+steps:
+  - uses: actions/checkout@v3
+    with:
+      fetch-depth: 0
+
+  - name: Has changes file
+    # Some automated tooling might not immediately create a changelog file. These can be handled independently
+    if: github.actor != 'dependabot[bot]'
+    uses: mach-composer/check-changie-changes-action@v0.1.0
+```
+