docs: add info about addr generator

README.md

@@ -20,7 +20,7 @@ $ go install github.com/fjl/geas/cmd/geas@latest
 To assemble `src/withdrawals/main.eas` you will need to invoke `geas`:
 
 ```console
-$ geas src/main.eas
+$ geas src/withdrawals/main.eas
 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
 ```
 
@@ -46,8 +46,47 @@ Test result: ok. 5 passed; 0 failed; 0 skipped; finished in 870.90ms
 Ran 1 test suites: 5 tests passed, 0 failed, 0 skipped (5 total tests)
 ```
 
+## Deployment
+
+System contracts are typically deployed using [Nick's method][nm] for predictable
+deployment on all chains. To mine a deployment tx and address using this
+technique, run the following:
+
+```console
+$ ./scripts/addr.sh withdrawals
+searching for withdrawals deployment data
+New highscore: 5
+Sender: 0x96aeE04D69562D087EC52847Fc1a4FDAF2526002
+Address: 0x0bb308c8c1F4933388CA65F63d941B76a829aAaA
+Tx:
+{
+  "type": "0x0",
+  "nonce": "0x0",
+  "to": null,
+  "gas": "0x3d090",
+  "gasPrice": "0xe8d4a51000",
+  "maxPriorityFeePerGas": null,
+  "maxFeePerGas": null,
+  "value": "0x0",
+  "input": "0x61049d5f5561013280600f5f395ff33373fffffffffffffffffffffffffffffffffffffffe146090573615156028575f545f5260205ff3
+5b366038141561012e5760115f54600182026001905f5b5f82111560595781019083028483029004916001019190603e565b90939004341061012e576001
+54600101600155600354806003026004013381556001015f3581556001016020359055600101600355005b6003546002548082038060101160a457506010
+5b5f5b81811460dd5780604c02838201600302600401805490600101805490600101549160601b83528260140152906034015260010160a6565b91018092
+1460ed579060025560f8565b90505f6002555f6003555b5f548061049d141561010757505f5b60015460028282011161011c5750505f610122565b016002
+90035b5f555f600155604c025ff35b5f5ffd",
+  "v": "0x1b",
+  "r": "0x539",
+  "s": "0x2a68889c60a01e96",
+  "hash": "0x7e28e6a01f362160d9916ee19ed9079d46b0773d91fc80245edcec6dd855ffd7"
+}
+```
+
+To deploy this transaction, simply fund the "sender" account and submit the tx
+to the network.
+
 [geas]: https://github.com/fjl/geas
 [7002]: https://eips.ethereum.org/EIPS/eip-7002
 [7251]: https://eips.ethereum.org/EIPS/eip-7251
 [foundry]: https://getfoundry.sh/
 [forge]: https://github.com/foundry-rs/foundry/blob/master/forge
+[nm]: https://yamenmerhi.medium.com/nicks-method-ethereum-keyless-execution-168a6659479c