Remove references to twitter

Author: wooorm

readme.md

@@ -68,7 +68,6 @@ language).
 These ecosystems can be connected together.
 
 * for more about us, see [`unifiedjs.com`][site]
-* for updates, see [@unifiedjs][twitter] on Twitter
 * for questions, see [support][]
 * to help, see [contribute][] and [sponsor][] below
 
@@ -1713,8 +1712,6 @@ work on [`ware`][ware], as it was a huge initial inspiration.
 
 [site]: https://unifiedjs.com
 
-[twitter]: https://twitter.com/unifiedjs
-
 [rehype]: https://github.com/rehypejs/rehype
 
 [remark]: https://github.com/remarkjs/remark