Write a page about Paralus release cycle, versioning etc.

[akshaygin]

Document followings to educate users/customers about Paralus releases

• What is the Paralus release cycle?
• Paralus application versioning system
• Upgrading strategy (zero downtime?)
• Backward compatibility support or back porting patches
• Reference to application changelog

Some references:

• https://kubernetes.io/releases/release/

[akshaygin]

@techmaharaj @niravparikh05 Let me know your initial thought on this. I will kick-start developing this page and ask for your reviews.