Create validator information in JSON file (#925)

* Create validator information in JSON file

* Fix JSON formatting for x field

Author: 79anvi

testnet/02e7e2b95bc2e3b466752e9276684c03537813fcc97b52aa562336ea6350948061.json

@@ -0,0 +1,10 @@
+{
+  "id": 258,
+  "name": "👋 79anvi 🍀",
+  "secp": "02e7e2b95bc2e3b466752e9276684c03537813fcc97b52aa562336ea6350948061",
+  "bls": "8e70fa890f11c6580db8dc6617150f15b0c8ff83923d28fcb56d24baca98d7f40873c71b346f3e0c23a616235bcdbfdd",
+  "website": "https://79anvi.com/",
+  "description": "The Friendly Validator",
+  "logo": "https://avatars.githubusercontent.com/u/78877664?s=400&u=8222af0f5a699eb25da014f1a2c48fcb11d54ed1&v=4",
+  "x": "https://x.com/79anvi"
+}