Update README

Author: junegunn

README.md

@@ -1,15 +1,4 @@
 <div align="center" markdown="1">
-  <sup>Special thanks to:</sup>
-  <br>
-  <a href="https://tuple.app/vim-plug">
-    <img alt="Tuple's sponsorship image" src="https://raw.githubusercontent.com/junegunn/i/master/tuple.png" width="400">
-  </a>
-
-### [Tuple, the premier screen sharing app for developers](https://tuple.app/vim-plug)
-[Available for MacOS & Windows](https://tuple.app/vim-plug)<br>
-
----
-
    <sup>Special thanks to:</sup>
    <br>
    <a href="https://www.warp.dev/?utm_source=github&utm_medium=referral&utm_campaign=vim-plug">