DOC how to run the pipeline on mac M1/M2/M3

Author: mvdoc

README.md

@@ -68,6 +68,23 @@ To let docker see the folder containing the head 3D model, you will have to bind
 docker run -v /tmp:/tmp -t --rm caseforge:latest /tmp/test-headcase/model.zip /tmp/test-headcase/case.zip
 ```
 
+### Running with Docker on an ARM system (Mac M1/M2/M3)
+
+To run the pipeline on an ARM system such as a Mac with M1/M2/M3 chip, you need to pass the `--platform linux/amd64` flag to all docker calls (see this [stackoverflow question](https://stackoverflow.com/questions/71040681/qemu-x86-64-could-not-open-lib64-ld-linux-x86-64-so-2-no-such-file-or-direc)). 
+
+To build the docker image, run
+
+```bash
+docker build --platform linux/amd64 --tag caseforge .
+```
+
+To run the pipeline, use
+
+```bash
+docker run --platform linux/amd64 --rm caseforge:latest --help
+```
+
+
 ## Manual installation
 
 Python requirements are listed under `requirements.txt`, and can be installed with