Update ZEC info.json

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

blockchains/zcash/info/info.json

@@ -1,28 +1,28 @@
 {
-    "name": "",
-    "website": "",
-    "source_code": "",
-    "whitepaper": "",
+    "name": "Zcash",
+    "website": "https://z.cash",
+    "source_code": "https://github.com/zcash/zcash",
+    "whitepaper": "https://github.com/zcash/zips/blob/master/protocol/protocol.pdf",
     "explorers": [
         {
-            "name": "",
-            "url": ""
+            "name": "ZChain",
+            "url": "https://explorer.zcha.in"
         }
     ],
     "socials": [
         {
             "name": "Twitter",
-            "url": ""
+            "url": "https://twitter.com/electriccoinco"
         },
         {
             "name": "Reddit",
-            "url": ""
+            "url": "https://www.reddit.com/r/zec/"
         }
     ],
     "details": [
         {
             "language": "en",
-            "description": ""
+            "description": "Launched in 2016 by Zooko Wilcox-O’Hearn and based on the Zerocoin protocol, Zcash (ZEC) is a decentralized and open-source privacy-focused cryptocurrency that enables selective transparency of transactions. Zcash transactions can either be transparent or shielded through a zero-knowledge proof called zk-SNARKs. This allows the network to maintain a secure ledger of balances without disclosing the parties or amounts involved. Instead of publishing spend-authority and transaction values, the transaction metadata is encrypted and zk-SNARKs are used to prove that nobody is being dishonest."
         }
     ],
     "data_source": "crowd"