add note on docker build, fix git workflow bug

Author: mik-p

.github/workflows/frlab-noetic.yaml

@@ -68,7 +68,7 @@ jobs:
         uses: docker/build-push-action@v5
         if: github.ref == 'refs/heads/master' || github.event_name == 'schedule'
         with:
-          context: .binder
+          context: .
           push: true
           tags: |
             ${{ env.REGISTRY }}/${{ env.OWNER }}/${{ env.IMAGE_NAME }}:latest

README.md

@@ -57,6 +57,18 @@ jupyter lab --ip=0.0.0.0 --port=8888
 voila . --port=8866
 ```
 
+### Docker
+
+A Dockerfile is provided to run the notebooks in a container. To build the container, run the following command in a terminal at the top level of this git repository.
+
+```bash
+# build the docker container
+docker build -t frlab -f .binder/Dockerfile .
+
+# run the docker container
+docker run -p 8888:8888 frlab jupyter lab --ip=0.0.0.0 --port=8888
+```
+
 ## Contributing
 
 Contributions are welcome. Please read the [contributing guidelines](<./CONTRIBUTING.md>) for more information.