Update RVN info.json

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

blockchains/ravencoin/info/info.json

@@ -1,28 +1,28 @@
 {
-    "name": "",
-    "website": "",
-    "source_code": "",
-    "whitepaper": "",
+    "name": "Ravencoin",
+    "website": "https://ravencoin.org",
+    "source_code": "https://github.com/RavenProject/Ravencoin",
+    "whitepaper": "https://ravencoin.org/whitepaper",
     "explorers": [
         {
-            "name": "",
-            "url": ""
+            "name": "Ravencoin Network",
+            "url": "https://ravencoin.network"
         }
     ],
     "socials": [
         {
             "name": "Twitter",
-            "url": ""
+            "url": "https://twitter.com/ravencoin"
         },
         {
             "name": "Reddit",
-            "url": ""
+            "url": "https://reddit.com/r/Ravencoin"
         }
     ],
     "details": [
         {
             "language": "en",
-            "description": ""
+            "description": "Ravencoin (RVN) is an open-source blockchain project that specializes in the creation and peer-to-peer transfer of assets. Ravencoin enables users to create and trade any real-world (e.g. commodities) or digital (e.g. virtual goods) assets on a network. The core developers launched Ravencoin on 3 Jan 2018. The project has some prominent backers: Bruce Fenton, Board Member of The Bitcoin Foundation, advises the team while Overstock has made a multi-million dollar investment into the project."
         }
     ],
     "data_source": "crowd"