The second link in below paragraph needs to be updated:

• Follow the quick start Jupyter Notebook to try it out. There is also a companion quick start guide containing a bit more explanation on the notebook.

Should be both / either of

• https://linkedin.github.io/feathr/quickstart_databricks.html
• https://linkedin.github.io/feathr/quickstart_synapse.html