README: update readme

README.md

@@ -40,7 +40,6 @@ directory.
 |   `clef`   | Stand-alone signing tool, which can be used as a backend signer for `geth`.                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
 |  `devp2p`  | Utilities to interact with nodes on the networking layer, without running a full blockchain.                                                                                                                                                                                                                                                                                                                                                                                                                                       |
 |  `abigen`  | Source code generator to convert Ethereum contract definitions into easy-to-use, compile-time type-safe Go packages. It operates on plain [Ethereum contract ABIs](https://docs.soliditylang.org/en/develop/abi-spec.html) with expanded functionality if the contract bytecode is also available. However, it also accepts Solidity source files, making development much more streamlined. Please see our [Native DApps](https://geth.ethereum.org/docs/developers/dapp-developer/native-bindings) page for details.                                  |
-| `bootnode` | Utility to create a nodekey that can be used to get a static enode for bootnodes.                                                                                                                                                                                                                                   |
 |   `evm`    | Developer utility version of the EVM (Ethereum Virtual Machine) that is capable of running bytecode snippets within a configurable environment and execution mode. Its purpose is to allow isolated, fine-grained debugging of EVM opcodes (e.g. `evm --code 60ff60ff --debug run`).                                                                                                                                                                                                                                               |
 | `rlpdump`  | Developer utility tool to convert binary RLP ([Recursive Length Prefix](https://ethereum.org/en/developers/docs/data-structures-and-encoding/rlp)) dumps (data encoding used by the Ethereum protocol both network as well as consensus wise) to user-friendlier hierarchical representation (e.g. `rlpdump --hex CE0183FFFFFFC4C304050583616263`).                                                                                                                                                                                |
 
@@ -270,16 +269,22 @@ start a bootstrap node that others can use to find each other in your network an
 the internet. The clean way is to configure and run a dedicated bootnode:
 
 ```shell
-$ bootnode --genkey=boot.key
-$ geth --nodekey=boot.key
+# Use the devp2p tool to create a node file.
+# The devp2p tool is also part of the 'alltools' distribution bundle.
+$ devp2p key generate node1.key
+# file node1.key is created.
+$ devp2p key to-enr -ip 10.2.3.4 -udp 30303 -tcp 30303 node1.key 
+# Prints the ENR for use in --bootnode flag of other nodes.
+# Note this method requires knowing the IP/ports ahead of time.
+$ geth --nodekey=node1.key
 ```
 
 With the bootnode online, it will display an [`enode` URL](https://ethereum.org/en/developers/docs/networking-layer/network-addresses/#enode)
 that other nodes can use to connect to it and exchange peer information. Make sure to
 replace the displayed IP address information (most probably `[::]`) with your externally
 accessible IP to get the actual `enode` URL.
 
-*Note: You could previously use the bootnode utility to start a stripped down version of geth. This is not possible anymore.*
+*Note: You could previously use the `bootnode` utility to start a stripped down version of geth. This is not possible anymore.*
 
 #### Starting up your member nodes