feat: add roadmap - open for discussions!

Author: jungs1

README.md

@@ -11,6 +11,15 @@
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+📅 UPDATE 2024-07-18
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+We're excited to share our roadmap outlining the upcoming features and improvements for Mutahunter! 🚀
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+Check it out here: [Roadmap](https://github.com/codeintegrity-ai/mutahunter/issues/5)
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+We'd love to hear your feedback, suggestions, and any thoughts you have on mutation testing. Join the discussion and share your insights on the roadmap or any other ideas you have. 🙌
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+
 ## Table of Contents
 
 - [Features](#features)