Update README with new description of Aptos

[banool]

Description

Updating the README with a more up-to-date description of Aptos.

Test Plan

👀

[github-actions]

✅ Forge suite land_blocking success on 3740472ddc60ee76bc0a1525d9c97f77cdaf632f

performance benchmark with full nodes : 6515 TPS, 6059 ms latency, 12000 ms p99 latency,(!) expired 1560 out of 2783880 txns
Test Ok

• Grafana dashboard
• Humio Logs
• Test runner output
• Test run is land-blocking

[github-actions]

✅ Forge suite compat success on testnet_2d8b1b57553d869190f61df1aaf7f31a8fc19a7b ==> 3740472ddc60ee76bc0a1525d9c97f77cdaf632f

Compatibility test results for testnet_2d8b1b57553d869190f61df1aaf7f31a8fc19a7b ==> 3740472ddc60ee76bc0a1525d9c97f77cdaf632f (PR)
1. Check liveness of validators at old version: testnet_2d8b1b57553d869190f61df1aaf7f31a8fc19a7b
compatibility::simple-validator-upgrade::liveness-check : 7189 TPS, 5370 ms latency, 8900 ms p99 latency,no expired txns
2. Upgrading first Validator to new version: 3740472ddc60ee76bc0a1525d9c97f77cdaf632f
compatibility::simple-validator-upgrade::single-validator-upgrade : 4648 TPS, 8602 ms latency, 11300 ms p99 latency,no expired txns
3. Upgrading rest of first batch to new version: 3740472ddc60ee76bc0a1525d9c97f77cdaf632f
compatibility::simple-validator-upgrade::half-validator-upgrade : 4564 TPS, 9002 ms latency, 11200 ms p99 latency,no expired txns
4. upgrading second batch to new version: 3740472ddc60ee76bc0a1525d9c97f77cdaf632f
compatibility::simple-validator-upgrade::rest-validator-upgrade : 6833 TPS, 5715 ms latency, 9800 ms p99 latency,no expired txns
5. check swarm health
Compatibility test for testnet_2d8b1b57553d869190f61df1aaf7f31a8fc19a7b ==> 3740472ddc60ee76bc0a1525d9c97f77cdaf632f passed
Test Ok

• Grafana dashboard
• Humio Logs
• Test runner output
• Test run is land-blocking