Configuration documentation update request

[ianawilson]

Hi there, I was going through some of the config options and ended up having to read the code to understand them enough. A few options that I was looking at were path, keyword, and hybrid. While I worked out more about all of these, I'd love to see things like:

• What's the default value?
• What do various settings imply?
  • eg, keyword = True implies that a defaults should not be used for the model (code)
  • eg, path = None in combination with keyword = True or defaults = False will disable semantic search (same code as above)
  • What does hybrid with different combinations of keyword and path?

Also, I don't know if this is a txtai or pytorch flag, but I found PYTORCH_MPS_DISABLE referenced in the txtai code and this was really important for my team in dealing with an mps memory issue. Particularly if this is a txtai flag, it'd be great to have it documented.

[davidmezzetti]

I'll work to clarify as best I can and update when that's complete.