Update mainnet.json

Author: sven-hash

tokens/mainnet.json

@@ -911,7 +911,7 @@
       "description": "Much wow, so alph, very doge.",
       "logoURI": "https://raw.githubusercontent.com/alephium/token-list/master/logos/DOGE.png"
     },
-        {
+    {
       "id": "50f19ae6fe71aad8096a4e9d90eaa4ceaccd301c9736549d3b57111a81778300",
       "name": "CryptoGriffons",
       "symbol": "GRFN",