Update LUNA info.json

Source:
https://coinmarketcap.com/currencies/terra-luna/

blockchains/terra/info/info.json

@@ -1,18 +1,18 @@
 {
-    "name": "",
-    "website": "",
-    "source_code": "",
-    "whitepaper": "",
+    "name": "Terra",
+    "website": "https://terra.money",
+    "source_code": "https://github.com/terra-project",
+    "whitepaper": "https://docs.terra.money",
     "explorers": [
         {
-            "name": "",
-            "url": ""
+            "name": "Terra Finder",
+            "url": "https://finder.terra.money"
         }
     ],
     "socials": [
         {
             "name": "Twitter",
-            "url": ""
+            "url": "https://twitter.com/terra_money"
         },
         {
             "name": "Reddit",
@@ -22,7 +22,7 @@
     "details": [
         {
             "language": "en",
-            "description": ""
+            "description": "Terra describes itself as a price-stable cryptocurrency aimed at mass adoption. As its scale grows, the team aims to have Terra evolve into a new financial infrastructure for the next generation of decentralized apps."
         }
     ],
     "data_source": "crowd"