doc: remove nft from the readme (#2555)

README.md

@@ -9,16 +9,6 @@ Interactive navigable audio visualization using Web Audio and Canvas.
 
 See a [tutorial](https://wavesurfer-js.org/docs) and [examples](https://wavesurfer-js.org/examples) on [wavesurfer-js.org](https://wavesurfer-js.org).
 
-## 10 years of wavesurfer.js 🎉
-Wavesurfer.js was started in March 2012. To celebrate the 10-year anniversary of wavesurfer.js, we created an NFT representing the initial commit to this repository.
-
-If you're a company, or an individual, wishing to support the project, please consider buying this memorable commit.
-
-|[<img alt="wavesufer.js NFT" src="https://lh3.googleusercontent.com/82rx4HORLYEodBBt13X6nZ2pdR-Ij25iRInmYuzCjjKU1uZ8NQmhaS-wB5u74qZlDShJlbEVTxUu8OodD8JdN79N7za4-AZfipT3=w600" width="300" />](https://opensea.io/assets/matic/0xE7ea2E2bE12C257d376400cB231D8eE51e972BD6/41246820351435245535444587687799096392219692760736652072803901002414398825025)|[Buy the first commit NFT 🎁](https://opensea.io/assets/matic/0xE7ea2E2bE12C257d376400cB231D8eE51e972BD6/41246820351435245535444587687799096392219692760736652072803901002414398825025)|
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-
-The proceeds will go to the author and the current maintainer.
-
 ## Browser support
 wavesurfer.js works only in [modern browsers supporting Web Audio](http://caniuse.com/audio-api).