readme: add info about the warp sponsor

it's only present on github, which is cool cuz we get to keep cobalt itself ad-free

README.md

@@ -29,6 +29,20 @@ cobalt is a media downloader that doesn't piss you off. it's friendly, efficient
 
 paste the link, get the file, move on. that simple, just how it should be.
 
+### sponsors
+<div align="center" markdown="1">
+    <sup>special thanks to Warp for sponsoring the development of cobalt</sup>
+    <br>
+    <a href="https://go.warp.dev/cobalt">
+        <img alt="Warp banner" width="400" src="https://raw.githubusercontent.com/warpdotdev/brand-assets/be7d584f98e62b1579fd2e9338d4c7318a732f1b/Github/Sponsor/Warp-Github-LG-03.png">
+    </a>
+
+### [Warp, built for coding with multiple AI agents](https://go.warp.dev/cobalt)
+</div>
+
+#### RoyaleHosting
+cobalt is sponsored by [royalehosting.net](https://royalehosting.net/?partner=cobalt), and a part of our infrastructure is hosted on their network. we really appreciate their kindness and support!
+
 ### cobalt monorepo
 this monorepo includes source code for api, frontend, and related packages:
 - [api tree & readme](/api/)
@@ -53,9 +67,6 @@ same content can be downloaded via dev tools of any modern web browser.
 ### contributing
 if you're considering contributing to cobalt, first of all, thank you! check the [contribution guidelines here](/CONTRIBUTING.md) before getting started, they'll help you do your best right away.
 
-### thank you
-cobalt is sponsored by [royalehosting.net](https://royalehosting.net/?partner=cobalt). a part of our infrastructure is hosted on their network. we really appreciate their kindness and support!
-
 ### licenses
 for relevant licensing information, see the [api](api/README.md) and [web](web/README.md) READMEs.
 unless specified otherwise, the remainder of this repository is licensed under [AGPL-3.0](LICENSE).