Load Balancer Tutorial Update

[xwedea]

Update Load Balance Tutorial with the latest changes

Summary:

Usage:

This PR includes
Resolves issues
Breaking API changes
Internal API changes
Usability improvements	x
Bug fixes
New functionality
New NF/onvm_mgr args
Changes to starting NFs
Dependency updates
Web stats updates

Merging notes:

• Dependencies: None

TODO before merging :

• [ ] PR is ready for review