How do I add ThunderCore to MetaMask?

Hey there! I'm wondering if you could help me out with something. I've been trying to add ThunderCore to my MetaMask wallet, but I'm a bit stuck on the process. Could you walk me through the steps on how to do it? I've heard that ThunderCore is a pretty popular blockchain platform, and I'd love to start using it with my MetaMask wallet. Thanks in advance for your help!