docs: thanks (#10487)

README.md

@@ -54,6 +54,17 @@ With Misskey's built in drive, you get cloud storage right in your social media,
 Misskey Documentation can be found at [Misskey Hub](https://misskey-hub.net/), some of the links and graphics above also lead to specific portions of it.
 
 ## Sponsors
+
 <div align="center">
 	<a class="rss3" title="RSS3" href="https://rss3.io/" target="_blank"><img src="https://rss3.mypinata.cloud/ipfs/QmUG6H3Z7D5P511shn7sB4CPmpjH5uZWu4m5mWX7U3Gqbu" alt="RSS3" height="60"></a>
 </div>
+
+## Thanks
+
+<a href="https://www.chromatic.com/"><img src="https://user-images.githubusercontent.com/321738/84662277-e3db4f80-af1b-11ea-88f5-91d67a5e59f6.png" width="153" height="30" alt="Chromatic" /></a>
+
+Thanks to [Chromatic](https://www.chromatic.com/) for providing the visual testing platform that helps us review UI changes and catch visual regressions.
+
+<a href="https://hub.docker.com/"><img src="https://user-images.githubusercontent.com/20679825/230148221-f8e73a32-a49b-47c3-9029-9a15c3824f92.png" width="117" height="30" alt="Docker" /></a>
+
+Thanks to [Docker](https://hub.docker.com/) for providing the container platform that helps us run Misskey in production.