[📝 DOCS] Update README.md

[Maghish]

The last time we updated the README.md the idea of pluto was different, but since the ideology of the project has been changed few days ago, the github repo's description and the README.md is not edited yet.

• I have checked all issues and found no duplicates of this issue
• I can resolve this issue by myself
• This documentation update request is authorized by the admins or moderators of this repository (if anyone found that you lied that this documentation update request is authorized by the admins or moderators then you will be punished)