update driver dependecies and secrets feature

Author: dhananjay-mk

docs/assets/images/guides/fs/storage_connector/jdbc_driver.png

@@ -36,16 +36,29 @@ Head to the Storage Connector View on Hopsworks (1) and set up a new storage con
 
 Enter the details for your JDBC enabled database.
 
+<figure markdown>
+  ![JDBC Connector Creation](../../../../assets/images/guides/fs/storage_connector/jdbc_creation.png)
+  <figcaption>JDBC Connector Creation Form</figcaption>
+</figure>
+
 1. Select "JDBC" as connector protocol.
 2. Enter the JDBC connection url. This can for example also contain the username and password.
-3. Add additional key/value arguments to be passed to the connection. These might differ by database. It can be the username and password.
+6. Add driver class name as an argument. This is a mandatory argument even if using default MySQL driver. Add an argument with name `driver` and driver class name as value. For MySQL databases, the class name is `com.mysql.cj.jdbc.Driver`, as shown in example below. The driver class name will differ based on the database to connect.
+3. Add additional key/value arguments to be passed to the connection. These might differ by database. It can be the username and password. Passwords are encrypted as [Secret](../../../projects/secrets/create_secret.md) and stored in the database for additional security.
 4. Click "Setup storage connector".
 
 <figure markdown>
-  ![JDBC Connector Creation](../../../../assets/images/guides/fs/storage_connector/jdbc_creation.png)
-  <figcaption>JDBC Connector Creation Form</figcaption>
+  ![Storage Connector Creation](../../../../assets/images/guides/fs/storage_connector/jdbc_driver.png)
+  <figcaption>Specifying driver name in case of MySQL</figcaption>
 </figure>
 
+
+!!! note
+  To be able to use the connector, you still need to upload the driver JAR file to the  [Jupyter configuration](../../../projects/jupyter/spark_notebook.md) or to a [Job configuration](../../../projects/jobs/pyspark_job.md)  in `Addtional Jars`.  However, for MySQL connections the default JDBC driver is included in Hopsworks so can skip this step when using MySQL databases.
+ 
+
+  
+
 ## Next Steps
 
 Move on to the [usage guide for storage connectors](../usage.md) to see how you can use your newly created JDBC connector.