Fix formatting issue with examples

lib/transport/peer.js

@@ -16,12 +16,14 @@ var MAX_RECEIVE_BUFFER = 10000000;
  * with it using the standar messages of the bitcoin p2p protocol.
  *
  * @example
+ * ```javascript
  * 
  * var peer = new Peer('127.0.0.1').setProxy('127.0.0.1', 9050);
  * peer.on('tx', function(tx) {
  *  console.log('New transaction: ', tx.id);
  * });
  * peer.connect();
+ * ```
  *
  * @param {String} host - IP address of the remote host
  * @param {Number} [port] - Port number of the remote host

lib/transport/pool.js

@@ -18,12 +18,14 @@ function now() {
  * ongoing peer connections. Peer events are relayed to the pool.
  *
  * @example
+ * ```javascript
  *
  * var pool = new Pool(Networks.livenet);
  * pool.on('peerinv', function(peer, message) {
  *   // do something with the inventory announcement
  * });
  * pool.connect();
+ * ```
  *
  * @param {Network|String} network - The network to connect
  * @returns {Pool}

lib/transport/rpc.js

@@ -8,11 +8,13 @@ var https = require('https');
  * server and enables simple and batch RPC calls.
  *
  * @example
+ * ```javascript
  *
  * var client = new RPC('user', 'pass');
  * client.getInfo(function(err, info) {
  *   // do something with the info
  * });
+ * ```
  *
  * @param {String} user - username used to connect bitcoind
  * @param {String} password - password used to connect bitcoind