Update index.md (docs/consensus-mechanisms/pos)

public/content/developers/docs/consensus-mechanisms/pos/index.md

@@ -24,7 +24,7 @@ Whereas under proof-of-work, the timing of blocks is determined by the mining di
 
 The following provides an end-to-end explanation of how a transaction gets executed in Ethereum proof-of-stake.
 
-1. A user creates and signs a [transaction](/developers/docs/transactions/) with their private key. This is usually handled by a wallet or a library such as [ether.js](https://docs.ethers.io/v5/), [web3js](https://docs.web3js.org/), [web3py](https://web3py.readthedocs.io/en/v5/) etc but under the hood the user is making a request to a node using the Ethereum [JSON-RPC API](/developers/docs/apis/json-rpc/). The user defines the amount of gas that they are prepared to pay as a tip to a validator to encourage them to include the transaction in a block. The [tips](/developers/docs/gas/#priority-fee) get paid to the validator while the [base fee](/developers/docs/gas/#base-fee) gets burned.
+1. A user creates and signs a [transaction](/developers/docs/transactions/) with their private key. This is usually handled by a wallet or a library such as [ethers.js](https://docs.ethers.org/v6/), [web3js](https://docs.web3js.org/), [web3py](https://web3py.readthedocs.io/en/v5/) etc but under the hood the user is making a request to a node using the Ethereum [JSON-RPC API](/developers/docs/apis/json-rpc/). The user defines the amount of gas that they are prepared to pay as a tip to a validator to encourage them to include the transaction in a block. The [tips](/developers/docs/gas/#priority-fee) get paid to the validator while the [base fee](/developers/docs/gas/#base-fee) gets burned.
 2. The transaction is submitted to an Ethereum [execution client](/developers/docs/nodes-and-clients/#execution-client) which verifies its validity. This means ensuring that the sender has enough ETH to fulfill the transaction and they have signed it with the correct key.
 3. If the transaction is valid, the execution client adds it to its local mempool (list of pending transactions) and also broadcasts it to other nodes over the execution layer gossip network. When other nodes hear about the transaction they add it to their local mempool too. Advanced users might refrain from broadcasting their transaction and instead forward it to specialized block builders such as [Flashbots Auction](https://docs.flashbots.net/flashbots-auction/overview). This allows them to organize the transactions in upcoming blocks for maximum profit ([MEV](/developers/docs/mev/#mev-extraction)).
 4. One of the validator nodes on the network is the block proposer for the current slot, having previously been selected pseudo-randomly using RANDAO. This node is responsible for building and broadcasting the next block to be added to the Ethereum blockchain and updating the global state. The node is made up of three parts: an execution client, a consensus client and a validator client. The execution client bundles transactions from the local mempool into an "execution payload" and executes them locally to generate a state change. This information is passed to the consensus client where the execution payload is wrapped as part of a "beacon block" that also contains information about rewards, penalties, slashings, attestations etc. that enable the network to agree on the sequence of blocks at the head of the chain. The communication between the execution and consensus clients is described in more detail in [Connecting the Consensus and Execution Clients](/developers/docs/networking-layer/#connecting-clients).