Update README.md

Author: nestedflowautomation

README.md

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 # NestedFlow- Automation
 NestedFlow Automation is a graphical, flow chart like Test automation framework to build scalable, reusable automation test cases and easily manage them. 
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+Tool can be used as Model Based Application testing tool in which each test case is represent as easy to understand flow charts
 Please refer to the introductory Video link: https://www.youtube.com/watch?v=Pm7px2cduqw
 ![image](https://github.com/nestedflow-Automation/NestedFlowRepo/assets/144468568/8987dd29-6ecf-4222-8d56-45d63da78ef4)