Docs cleanup

[dbirman]

User story

As a user I want to get only data-schema specific information from the aind-data-schema documentation. Not AIND-specific information. Once the new https://scicomp-docs.readthedocs.io/en/latest/index.html page is filled out we can start removing content from here and simplifying.

Acceptance criteria

• All AIND-specific FAQs moved to scicomp-docs
• All core schemas have an example with details about fields users often find confusing
• Data organization replaced with "Naming conventions", philosophy section moved to scicomp-docs
• Diagrams removed
• Front page examples moved into relevant files
• Hide TOC section indices/tables on front page
• Reduce use of Q&A style in "metadata in general" page

Notes

Blocked by: https://github.com/AllenNeuralDynamics/aind_data_outreach/issues/49