Update mongodb/README.md with more specific info

Changed reference to original forked repo which is not maintained to this repo to avoid conflicting instructions.   Might want to do that for top level README as well.

mongodb/README.md

 ## Quick Start
 
-This section describes how to run YCSB on MongoDB running locally. 
+This section describes how to run YCSB on MongoDB. 
 
 ### 1. Start MongoDB
 
@@ -13,7 +13,10 @@ on x86-64 Linux box:
     cd mongodb-linux-x86_64-*
     ./bin/mongod --dbpath /tmp/mongodb
 
-### 2. Install Maven and Java
+Replace x.x.x above with the latest stable release version for MongoDB.
+See http://docs.mongodb.org/manual/installation/ for installation steps for various operating systems.
+
+### 2. Install Java and Maven
 
 Go to http://www.oracle.com/technetwork/java/javase/downloads/index.html
 
@@ -46,21 +49,22 @@ Reload bash and test mvn
 
 ### 3. Set Up YCSB
 
-Clone the YCSB git repository and compile:
+Download the YCSB zip file and compile:
 
-    git clone git://github.com/brianfrankcooper/YCSB.git
-    cd YCSB
-    mvn clean package
+    wget https://github.com/achille/YCSB/archive/master.zip
+    unzip master
+    cd YCSB-master
+    mvn -pl com.yahoo.ycsb:core,com.yahoo.ycsb:mongodb-binding clean package
 
 ### 4. Run YCSB
     
 Now you are ready to run! First, load the data:
 
-    ./bin/ycsb load mongodb -s -P workloads/workloada
+    ./bin/ycsb load mongodb -s -P workloads/workloada > outputLoad.txt
 
 Then, run the workload:
 
-    ./bin/ycsb run mongodb -s -P workloads/workloada
+    ./bin/ycsb run mongodb -s -P workloads/workloada > outputRun.txt
 
 See the next section for the list of configuration parameters for MongoDB.