How to add custom chain, like Goerli?

[zydjohnHotmail]

Hello:
I see that this repo can explore multiple chains, but how I can add Goerli using wss?
By the way, I wrote a smart contract and deployed onto Goerli chain, I can see the deployment went well. But I want to test the smart contract deployed on Goerli chain with explorer, however, the default Goerli chain explorer didn’t have such feature.
I want to know if I can modify this repo, so I can use it to test smart contract deployed on Goerli chain?
Finally, if there is other custom blockchain which I want to be able to launch blockchain explorer, some blockchain, I can see there is wss port open on localhost from Chrome developer tools, how to add these types of custom blockchain explorer?
Please advise,
Thanks,