Adjusted README for new stuff in PR

Took the opportunity to document the prefunded

Author: maoueh

README.md

@@ -68,13 +68,29 @@ $ builder-playground cook l1 --latest-fork --output ~/my-builder-testnet --genes
 - `--log-level` (string): Log level to use (debug, info, warn, error, fatal). Defaults to `info`.
 - `--labels` (key=val): Custom labels to apply to your deployment.
 - `--disable-logs` (bool): Disable the logs for the services. Defaults to `false`.
+- `--prefunded-account` (string, repeated): Fund in L1 genesis this account in addition to static prefunded accounts, the input should the account's private key in hexadecimal format with 0x
 - `--contender` (bool): Enable [contender](https://github.com/flashbots/contender) spammer. Required to use other contender flags.
   - `--contender.arg` (string): Pass custom args to the contender CLI. 
   Example: `--contender.arg "--tpb 20"`
   - `--contender.target` (string): Change the default target node to spam. On the `l1` recipe, the default is "el", and on `opstack` it's "op-geth".
 
 To stop the playground, press `Ctrl+C`.
 
+### L1 Static Prefunded Accounts
+
+The following addresses are pre-funded in the L1 genesis allocation, all with a balance of `309485009.8213451 ETH`:
+
+- `0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266` (Private key `0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80`)
+- `0x70997970c51812dc3a010c7d01b50e0d17dc79c8` (Private key `0x59c6995e998f97a5a0044966f0945389dc9e86dae88c7a8412f4603b6b78690d`)
+- `0x3c44cdddb6a900fa2b585dd299e03d12fa4293bc` (Private key `0x5de4111afa1a4b94908f83103eb1f1706367c2e68ca870fc3fb9a804cdab365a`)
+- `0x90f79bf6eb2c4f870365e785982e1f101e93b906` (Private key `0x7c852118294e51e653712a81e05800f419141751be58f605c371e15141b007a6`)
+- `0x15d34aaf54267db7d7c367839aaf71a00a2c6a65` (Private key `0x47e179ec197488593b187f80a00eb0da91f1b9d0b13f8733639f19c30a34926a`)
+- `0x9965507d1a55bcc2695c58ba16fb37d819b0a4dc` (Private key `0x8b3a350cf5c34c9194ca85829a2df0ec3153be0318b5e2d3348e872092edffba`)
+- `0x976ea74026e726554db657fa54763abd0c3a0aa9` (Private key `0x92db14e403b83dfe3df233f83dfa3a0d7096f21ca9b0d6d6b8d88b2b4ec1564e`)
+- `0x14dc79964da2c08b23698b3d3cc7ca32193d9955` (Private key `0x4bbbf85ce3377467afe5d46f804f221813b2bb87f24d81f60f1fcdbf7cbf4356`)
+- `0x23618e81e3f5cdf7f54c3d65f7fbc0abf5b21e8f` (Private key `0xdbda1821b80551c9d65939329250298aa3472ba22feea921c0cf5d620ea67b97`)
+- `0xa0ee7a142d267c1f36714e4a8f75612f20a79720` (Private key `0x2a871d0798f97d79848a013d4936a73bf4cc922c825d33c1cf7073dff6d409c6`)
+
 ## Inspect
 
 Builder-playground supports inspecting the connection of a service to a specific port.