Update Readme

[DivyaJain-DataAnalyst]

hello @SurajSanap
can you assign this issue to me if you feels it valid

Improved the README file for the IndShield project as part of my GSSoC’25 open-source contribution.

[DivyaJain-DataAnalyst]

Thanks for assigning @SurajSanap

Can u add labels
And also if possible can it be of level 2 or higher if you liked it based on the PR raised.