Update QTUM info.json

Source:
https://coinmarketcap.com/currencies/qtum/

blockchains/qtum/info/info.json

@@ -1,28 +1,28 @@
 {
-    "name": "",
-    "website": "",
-    "source_code": "",
-    "whitepaper": "",
+    "name": "Qtum",
+    "website": "https://qtum.org",
+    "source_code": "https://github.com/qtumproject/qtum",
+    "whitepaper": "https://qtum.org/uploads/files/a2772efe4dc8ed1100319c6480195fb1.pdf",
     "explorers": [
         {
-            "name": "",
-            "url": ""
+            "name": "Qtum.info",
+            "url": "https://qtum.info"
         }
     ],
     "socials": [
         {
             "name": "Twitter",
-            "url": ""
+            "url": "https://twitter.com/qtumOfficial"
         },
         {
             "name": "Reddit",
-            "url": ""
+            "url": "https://reddit.com/r/Qtum"
         }
     ],
     "details": [
         {
             "language": "en",
-            "description": ""
+            "description": "Qtum (QTUM) is a Proof-of-Stake (PoS) smart contract blockchain platform and value transfer protocol. In PoS, node operators are rewarded for validating transactions. Qtum is built on Bitcoin's UTXO transaction model, with the added functionality of smart contract execution."
         }
     ],
     "data_source": "crowd"