Add Covenant classifications and their upper limits in a block on hsd-dev.org as "protocol summary" guide on hsd-dev.org. It is FAQ.

[DIPMR]

COVENANT LIMITS: There can be maximum of

• 300 Open,
• 600 Updates in total &
• 600 Renews in total in a block.
• BID, REVEAL & REDEEM have no limits besides overall block size, i.e. 4 MiB .

COVENANT CLASSIFICATIONS:

• Updates could be OPEN, TRANSFER, UPDATE & REVOKE.
• Renews could be REGISTER, RENEW & FINALIZE.