Change KeyScreen link in README

Updated the project links in the README.

Author: rampatra

README.md

@@ -53,4 +53,4 @@ MacBook Pro
 
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-_P.S. For any queries or concerns, you can reach out to me on [Twitter](https://twitter.com/rampatra_). I'll try my best to help 🙏. And, if you're keen to know what I'm currently working on then check out [Presentify](https://presentifyapp.com), [FaceScreen](https://facescreenapp.com/), [ToDoBar](https://todobarapp.com/), [SimpleFill](https://simplefillapp.com/), and [Apps.Deals](https://www.apps.deals)._
+_P.S. For any queries or concerns, you can reach out to me on [Twitter](https://twitter.com/rampatra_). I'll try my best to help 🙏. And, if you're keen to know what I'm currently working on then check out [Presentify](https://presentifyapp.com), [FaceScreen](https://facescreenapp.com/), [KeyScreen](https://keyscreenapp.com/), [ToDoBar](https://todobarapp.com/), [SimpleFill](https://simplefillapp.com/), and [Apps.Deals](https://www.apps.deals)._