Updated README

Author: sindbach

README.md

@@ -4,7 +4,7 @@ Repository to help getting started with MongoDB Java driver connecting to MongoD
 
 ## Information
 
-This Get-Started project uses [MongoDB Java driver](https://mongodb.github.io/mongo-java-driver/) version 4.1.1 by default. Although you can change the driver version, the provided code example was only tested against the default version of MongoDB driver. There is no guarantee that the code sample will work for all possible versions of the driver.
+This Get-Started project uses [MongoDB Java driver](https://mongodb.github.io/mongo-java-driver/) version 4.1.1 (sync) by default. Although you can change the driver version, the provided code example was only tested against the default version of MongoDB driver. There is no guarantee that the code sample will work for all possible versions of the driver.
 
 ## Pre-requisites 
 
@@ -16,7 +16,27 @@ Have Docker running on your machine. You can download and install from: https://
 
 In order to execute the code example, you need to specify `MONGODB_URI` environment variable to connect to a MongoDB cluster. If you don't have any you can create one by signing up [MongoDB Atlas Free-tier M0](https://docs.atlas.mongodb.com/getting-started/). 
 
-## Build Steps 
+##  Execution Steps 
+
+1. Build Docker image with a tag name. Within the top level directory execute: 
+   ```
+   docker build . -t start-java
+   ```
+   This will build a docker image with a tag name `start-java`. 
+
+2. Execute the helper shell script followed by the MongoDB URI that you would like to connect to. 
+      ```
+      ./get-started.sh "mongodb+srv://usr:pwd@example.mongodb.net/dbname?retryWrites=true"
+      ```
+
+   To use a different driver version, specify the driver version after the MongoDB URI. For example:
+      ```
+      ./get-started.sh "mongodb+srv://usr:pwd@example.mongodb.net/dbname?retryWrites=true" 4.1.0
+      ```
+
+## Alternative Execution Steps (without helper)
+
+#### Build Steps 
 
 1. Build Docker image with a tag name. Within this directory execute: 
    * To use the default driver version and specify `MONGODB_URI`:
@@ -37,14 +57,13 @@ In order to execute the code example, you need to specify `MONGODB_URI` environm
 
    The command above will run a `start-java` tagged Docker image. Sets the hostname as `java`. 
 
-## Execution Steps
+#### Execution
 
 1. Run the compiled Java code example by following below steps:
-    * `cd ~/java`
     * `mvn package`
     * `java -cp ./target/start-1.0-SNAPSHOT.jar com.start.Getstarted`
 
-### Change driver version from within the Docker environment
+#### Change driver version from within the Docker environment
 
 You can change the version of `mongo-driver-sync` before code compilation time by modifying the [pom.xml: mongo-java-driver version](java/pom.xml#L11).