Update contract.js

Author: 22388o

lib/contract.js

@@ -5,9 +5,10 @@ const provider = new bitcoin(providerUrl);
 const ldkProvider = new ldk(providerUrl);
 
 class DLCContract {
-  constructor(address, api, provider) {
+  constructor(address, api, provider, contract) {
     this.address = address;
     this.api = api;
+    this.contract = contract;
     this.provider = provider;
     this.contract = new this.provider.dlc.Contract(api, address);
   }