Update Babylon Github URL

Author: hyunwoo

chain/babylon/param_2.json

@@ -51,7 +51,7 @@
     "about": {
         "website": "https://babylonchain.io/",
         "docs": "https://docs.babylonchain.io/",
-        "github": "https://github.com/babylonchain",
+        "github": "https://github.com/babylonlabs-io",
         "blog": "https://babylonchain.io/blog",
         "medium": "https://medium.com/babylonchain-io",
         "reddit": "https://www.reddit.com/r/babylonlabs/",