Update README.md (#420)

Author: JOYS K MATHEW

README.md

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 ![Logo](https://github.com/projectM-visualizer/projectm/raw/master/web/logo.png)
 
 ## projectM - The most advanced open-source music visualizer
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+**Experience psychedelic and mesmerizing visuals by transforming music into equations that render into a limitless array of user-contributed visualizations.**
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 projectM is an open-source project that reimplements the esteemed [Winamp Milkdrop](https://en.wikipedia.org/wiki/MilkDrop) by Geiss in a more modern, cross-platform reusable library.
 
 Its purpose in life is to read an audio input and to produce mesmerizing visuals, detecting tempo, and rendering advanced equations into a limitless array of user-contributed visualizations.