docs(mongo-client): the new method MongoClient().connect() was wrongly… (#1633)

* doc(mongo-client): the new method MongoClient().connect() was wrongly marked as deprecated instead of the old static MongoClient.connet()

Author: krufab

lib/mongo_client.js

@@ -22,6 +22,22 @@ var parse = require('./url_parser'),
  * @fileOverview The **MongoClient** class is a class that allows for making Connections to MongoDB.
  *
  * @example
+ * // Connect using a MongoClient instance
+ * const MongoClient = require('mongodb').MongoClient;
+ * const test = require('assert');
+ * // Connection url
+ * const url = 'mongodb://localhost:27017';
+ * // Database Name
+ * const dbName = 'test';
+ * // Connect using MongoClient
+ * const mongoClient = new MongoClient(url);
+ * mongoClient.connect(function(err, client) {
+ *   const db = client.db(dbName);
+ *   client.close();
+ * });
+ *
+ * @example
+ * // Connect using the MongoClient.connect static method
  * const MongoClient = require('mongodb').MongoClient;
  * const test = require('assert');
  * // Connection url
@@ -232,7 +248,6 @@ var define = (MongoClient.define = new Define('MongoClient', MongoClient, false)
  * @method
  * @param {MongoClient~connectCallback} [callback] The command result callback
  * @return {Promise<MongoClient>} returns Promise if no callback passed
- * @deprecated MongoClient.connect is deprecated, please use new MongoClient().connect() to connect.
  */
 MongoClient.prototype.connect = function(callback) {
   // Validate options object
@@ -469,9 +484,9 @@ MongoClient.connect = function(url, options, callback) {
   options = options || {};
 
   // Create client
-  var mongoclient = new MongoClient(url, options);
+  var mongoClient = new MongoClient(url, options);
   // Execute the connect method
-  return mongoclient.connect(callback);
+  return mongoClient.connect(callback);
 };
 
 define.staticMethod('connect', { callback: true, promise: true });