Task: Update Stuctsense Documentation and BrainKB documentation

[puja-trivedi]

Description

Update Stuctsense Documentation and BrainKB documentation

Tasks

• Move README from tutorial to root directory
• Remove details from Structsense section in BrainKB documentation and point to Structsense repo

Freeform Notes

• In the future we may create a GH workflow to keep information in BrainKB documentation up to date with Structsense documentation