docs(testnet): add el dashboard and holesky avs address (#687)

add avs holesky address and el holesky dashboard to docs

task: https://app.asana.com/0/1206684215872507/1206862901604365/f

docs/site/docs/learn/testnet/testnet.md

@@ -18,8 +18,9 @@ You can delegate testnet **\$ETH** to securing Omni through EigenLayer through t
 
 1. Have Holesky as a network to your browser wallet, funded with Holesky **\$ETH**. [Read more on how here](https://www.coingecko.com/learn/holesky-testnet-eth).
 2. Swap Holesky **\$ETH** for any of the [EigenLayer supported restaking tokens](https://docs.eigenlayer.xyz/eigenlayer/restaking-guides/restaking-user-guide/stage-2-testnet/obtaining-testnet-eth-and-liquid-staking-tokens-lsts).
-3. Connect your wallet to the EigenLayer dashboard.
-4. Restake your restaking tokens to any of the Omni Operators.
+3. Connect your wallet to the [EigenLayer dashboard](https://holesky.eigenlayer.xyz/).
+4. Restake your restaking tokens on the [dashboard restake section](https://holesky.eigenlayer.xyz/restake).
+5. Delegate your restaked tokens to any of the Omni Operators.
 5. 🎉 You are helping secure the Omni Omega Testnet! 🎉
 
 ## Adding the Omni Network to Your Wallet

docs/site/docs/operate/testnet/register.md

@@ -46,6 +46,6 @@ omni operator register --config-file ~/path/to/operator.yaml
 
 :::info
 
-The AVS address (`$OMNI_HOLESKY_AVS_ADDRESS`) is the address of the Omni AVS contract [deployed on Holesky testnet](https://holesky.etherscan.io/) that will be called by the `register` command.
+The AVS address (`0xa7b2e7830C51728832D33421670DbBE30299fD92`) is the address of the Omni AVS contract [deployed on Holesky testnet](https://holesky.etherscan.io/address/0xa7b2e7830C51728832D33421670DbBE30299fD92) that will be called by the `register` command.
 
 :::