chore: upgrades package.jsons & READMEs

.gitignore

@@ -1,6 +1,5 @@
 **/node_modules
 *.sw*
 *.log
-*.yaml
 .node*
 **/build

solidity/truffle-examples/bitcoin-balance/README.md

@@ -6,29 +6,25 @@ This repo is to demonstrate how you would set up an Oraclize smart-contract deve
 
 ## :page_with_curl:  _Instructions_
 
-**1)** Fire up your favourite console & make sure you have Truffle 5 globally installed:
-
-__`❍ npm install -g truffle@5.0.0-next.17`__
-
-**2)** Clone this repo somewhere:
+**1)** Fire up your favourite console & clone this repo somewhere:
 
 __`❍ git clone https://github.com/oraclize/ethereum-examples.git`__
 
-**3)** Enter this directory & install dependencies:
+**2)** Enter this directory & install dependencies:
 
 __`❍ cd ethereum-examples/solidity/truffle-examples/bitcoin-balance && npm install`__
 
-**4)** Launch Truffle:
+**3)** Launch Truffle:
 
-__`❍ truffle develop`__
+__`❍ npx truffle develop`__
 
-**5)** Open a _new_ console in the same directory & spool up the ethereum-bridge:
+**4)** Open a _new_ console in the same directory & spool up the ethereum-bridge:
 
-__`❍ ./node_modules/.bin/ethereum-bridge -a 9 -H 127.0.0.1 -p 9545 --dev`__
+__`❍ npx ethereum-bridge -a 9 -H 127.0.0.1 -p 9545 --dev`__
 
-**6)** Once the bridge is ready & listening, go back to the first console with Truffle running & set the tests going!
+**5)** Once the bridge is ready & listening, go back to the first console with Truffle running & set the tests going!
 
-__`❍ test`__
+__`❍ truffle(develop)> test`__
 
  
 

solidity/truffle-examples/bitcoin-balance/contracts/BitcoinAddressExample.sol

@@ -3,11 +3,11 @@ pragma solidity ^0.5.0;
 import "./oraclizeAPI.sol";
 
 contract BitcoinBalanceExample is usingOraclize {
-    
+
     uint256 public balance;
 
     event LogBitcoinAddressBalance(uint _balance);
-    
+
     constructor() public {
         getBalance("3D2oetdNuZUqQHPJmcMDDHYoqkyNVsFk9r");
     }
@@ -17,8 +17,8 @@ contract BitcoinBalanceExample is usingOraclize {
         balance = parseInt(result, 8);
         emit LogBitcoinAddressBalance(balance);
     }
-    
+
     function getBalance(string memory _bitcoinAddress) public payable {
-        oraclize_query("computation",["QmaMFiHXSqCFKkGPbWZh5zKmM827GWNpk9Y1EYhoLfwdHq", _bitcoinAddress]);
+        oraclize_query("computation",["QmYe37uvAUvZZ8ksV726BZt6dJFWP764sTPisNQtuDZVom", _bitcoinAddress]);
     }
 }