After drafting each of its components, revise the Typhon English Spec so all the components match up properly, and it is, in a sense, complete. Ideally, this would match up with the relevant formal specs and prototypes.

Prerequisites

• Heterogeneous Narwhal English Spec #41
• Multi-Round Heterogeneous Paxos #54
• https://github.com/anoma/specs/issues/123
• Chimera Chain English Spec #48

Sub-Tasks

• Review mempool spec
• Review heterogeneous paxos spec
• Review Execution Engine Spec
• Review Chimera Chain Spec
• Internal review