Love the repo, nice for walking newcomers into the solution. Just a small typo in module1 where "files" projections are not shown. https://docs.microsoft.com/en-us/azure/search/knowledge-store-concept-intro#physical-storage
"The knowledge store supports two types of projections:
Tables: For data that is best represented as rows and columns, table projections allow you to define a schematized shape or projection in Table storage.
Objects: When you need a JSON representation of your data and enrichments, object projections are saved as blobs."