defs: update NIX (#268)

defs/bitcoin/nix.json

@@ -1,7 +1,7 @@
 {
-  "coin_name": "Nix",
+  "coin_name": "NIX",
   "coin_shortcut": "NIX",
-  "coin_label": "Nix",
+  "coin_label": "NIX",
   "website": "https://nixplatform.io",
   "github": "https://github.com/nixplatform/nixcore",
   "maintainer": "mattt21 <matt@nixplatform.io>",
@@ -32,7 +32,7 @@
   "uri_prefix": "nix",
   "min_address_length": 27,
   "max_address_length": 34,
-  "bitcore": [],
+  "bitcore": ["https://blockchain.nixplatform.io"],
   "blockbook": [],
   "cooldown": 100
 }

defs/coins_details.json

@@ -28312,4 +28312,4 @@
         "updated_at": 1549374014,
         "updated_at_readable": "Tue Feb  5 14:40:14 2019"
     }
-}
+}

defs/wallets.json

@@ -47,5 +47,9 @@
     "bitcoin:XZC": {
         "Electrum-XZC": "https://github.com/zcoinofficial/electrum-xzc",
         "Znode Tool": "https://github.com/yura-pakhuchiy/znode-tool"
+    },
+    "bitcoin:NIX": {
+        "NIX-Electrum": "https://github.com/nixplatform/electrum-nix",
+        "Ghostnode Tool": "https://github.com/nixplatform/ghostnode-tool"
     }
 }