Add a section on tx mempool behavior in Consensus Subprotocols page #4
Description
- Conditions on which txs are accepted to mempool
- Conditions on which txs are not accepted
- Conditions on which txs are first accepted and later dropped (i.e. fees)
- Size limitations
- Behavior when mempool is full
Most of mempool default behaviors are inherited from Substrate, but we want fraud proofs to have separate handling (see autonomys/subspace#2570 and autonomys/subspace#2567)