fixed:typo errors (#43)

Author: nyilynnhtwe

docs/_docs.json

@@ -542,8 +542,8 @@
   },
   "footer": {
     "socials": {
-      "x": "https://x.com/mintlify",
-      "github": "https://github.com/mintlify",
+      "x": "https://x.com/base",
+      "github": "https://github.com/base",
       "linkedin": "https://linkedin.com/company/mintlify"
     }
   }

docs/learn/token-development/nft-guides/dynamic-nfts.mdx

@@ -296,7 +296,7 @@ Dynamic NFTs are commonly used with gaming projects, similar to the one we built
 [Download a zip containing PNGs]: https://gateway.irys.xyz/MoOvEzePMwFgc_v6Gw3U8ovV6ostgrkWb9tS4baAJhc
 [Irys CLI]: https://docs.irys.xyz/build/d/storage-cli/installation
 [mutability features]: https://docs.irys.xyz/build/d/features/mutability
-[Opensea Testnet]: https://testnets.opensea.io/accoun
+[Opensea Testnet]: https://testnets.opensea.io/account
 [Remix]: https://docs.base.org/tutorials/deploy-with-remix
 [server]: https://docs.irys.xyz/build/d/quickstart