Change to accurately reflect new Mongo Docs

exercises/find/problem.md

@@ -1,7 +1,7 @@
 Here we will learn how to search for documents.
 
 In this exercise the database name is `learnyoumongo`.
-So, the url would be something like: `mongodb://localhost:27017/learnyoumongo`
+The URL would be something like: `mongodb://localhost:27017/`.
 
 Use the `parrots` collection to find all documents where `age`
 is greater than the first argument passed to your script.
@@ -15,8 +15,10 @@ To connect to the database, one can use something like this:
 
 ```js
 var mongo = require('mongodb').MongoClient
-mongo.connect(url, function(err, db) {
-  // db gives access to the database
+mongo.connect(url, function(err, dbClient) {
+
+  var db = dbClient.db(database_name);
+  // db gives you access to the DB.
 })
 ```
 
@@ -39,7 +41,7 @@ collection.find({
 ```
 
 If your program does not finish executing, you may have forgotten to
-close the `db`. That can be done by calling `db.close()` after you
+close the `db`. That can be done by calling `dbClient.close()` after you
 have finished.
 
 ## Resources: