Add more details about reactive-kit project in Readme

[AvinashDalvi89]

Would like to know more about following point :

• What is going to explain using RxJs
• What are that graphical representation says ?
• Dependancies
• As end user should know by seeing at app what is does

[souvikbasu]

I will get back to you with answers to these questions after a few days once we have more details about the working of the tool