reorganize chapters

consensus/README.md

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+## consensus
+
+<br>
+
+### chapters
+
+<br>
+
+* **[tendermint](tendermint)**
+* **[leader election](leader_election)**
+* **[decentralized sequencers](decentralized_sequencers)**

consensus/decentralized_sequencers/README.md

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+## decentralized sequencers
+
+<br>
+
+#### bt3gl's diagram for **[espresso systems](https://docs.espressosys.com/sequencer/espresso-sequencer-architecture/readme)**:
+
+<br>
+
+<p align="center">
+<img width="600" src="https://github.com/go-outside-labs/decentralized-protocols-research/assets/138340846/1e892bc0-a2a5-4064-b5dc-a321c13e1b87">
+</p>
+
+<br>
+
+---
+
+### cool resources
+
+<br>
+
+* **[shared sequencers, by bridge harris](https://bridgeharris.substack.com/p/a-primer-on-shared-sequencers)**
+* **[shared sequencers, by maven11](https://maven11.substack.com/p/the-shared-sequencer)**
+* **[shared sequencers, dba](https://dba.mirror.xyz/NTg5FSq1o_YiL_KJrKBOsOkyeiNUPobvZUrLBGceagg)**
+* **[shared sequencers, by celestia](https://forum.celestia.org/t/sharing-a-sequencer-set-by-separating-execution-from-aggregation/702)**
+* **[shared sequencing, by expresso](https://hackmd.io/@EspressoSystems/SharedSequencing)**

consensus/leader_election/README.md

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+## leader election
+
+<br>
+
+### secret leader election
+
+<br>
+
+* **[leader election overview](le_overview.pdf)**
+* **[wtf is a secret leader election, by 2077](https://etherpedia.2077.xyz/posts/wtf-is-secret-leader-election/)**
+* **[secret leader election, by ef](https://ethereum.org/en/roadmap/secret-leader-election/)**
+
+<br>
+
+---
+
+### single secret leader election 
+
+<br>
+
+* **[single secret leader election, by d. boneh et al.](https://eprint.iacr.org/2020/025.pdf)**
+* **[post-quantum single secret leader election, by d. boneh](https://www.youtube.com/watch?v=8caTi0JNGYA)**
+* **[private attacks in longest chain proof-of-stake protocols with ssle, by a. azouv](https://arxiv.org/pdf/2109.07440)** (hiding the identity of the leader)
+* **[a framework for constructing ssle from mpc, backes et al.](https://eprint.iacr.org/2022/1040.pdf)** (computational cost for N parties as low as O(N), garbled circuits, concerns over linear blow-up)
+* **[whisk, a practical shuffle-based SSLE protocol](https://ethresear.ch/t/whisk-a-practical-shuffle-based-ssle-protocol-for-ethereum/11763)** (ef's choice)
+
+<br>
+
+---
+
+### leaderless consensus protocols
+
+<br>
+
+* **[red belly: a secure, fair and scalable open blockchain, crain et al.](https://cognizium.io/uploads/resources/Red%20Belly-A%20secure,%20fair%20and%20scalable%20open%20blockchain%20-%20Tyler%20Crain,%20Christopher%20Natoli,%20Vincent%20Gramoli%20-%202021%20-%20paper.pdf)**

consensus/tendermint/README.md

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+## tendermint
+
+<br>
+
+### tl; dr
+
+<br>
+
+* consensus protocol for ordering events in a distributed network under adversarial conditions (aka byzantine fault tolerant consenus, or atomic broadcast).
+* tendermint consists of two technical components: a blockchain consensus engine and a generic application interface, and works even if up to 1/3 of machines fail in arbitrary ways.
+* tendermint core (the consensus engine) performs BFT state machine replication (SMR) for arbitrary deterministic, finite state machines.
+* the application interface (abci) enables the transactions to be processed in any programming language.
+
+<br>
+
+<p align="center">
+<img src="https://github.com/go-outside-labs/decentralized-protocols-research/assets/138340846/fbb43593-d1d0-4efe-ae7e-80d880333a60" width="60%" align="center" style="padding:1px;border:1px solid black;" title="Jan 7th"/>
+</p>
+
+<br>
+
+---
+
+### cool resources
+
+<br>
+
+* **[tendermint docs](https://docs.tendermint.com/)**
+* **[tenderming abci](https://github.com/tendermint/tendermint/tree/v0.34.x/abci)**
+* **[the latest gossip on BFT consensus, e. buchman et al.](https://arxiv.org/abs/1807.04938)**
+* **[cometbft (a distributed byzantine fault-tolerant derterministic state machine replication engine)](https://github.com/cometbft/cometbft)**