"IBC for X" FAQs

[cwgoes]

• IBC for existing or future Tendermint blockchains
• IBC for existing or future non-Tendermint blockchains
• IBC for infrastructure operators / potential relayers (validators, wallet authors)
• IBC for decentralized application developers

[cwgoes]

This documentation belongs on a website, not in this repository.

[gjermundgaraba]

This issue was mistakenly reopened during some integration work, so closing again now.