WIP: sponsor image

Author: horenmar

README.md

@@ -1,5 +1,11 @@
 <a id="top"></a>
-![Catch2 logo](data/artwork/catch2-logo-full-with-background.svg)
+
+<table width="100%">
+  <tr>
+    <td align="center" width="50%"><img src="/data/artwork/catch2-logo-full-with-background.svg" width="100%"></td>
+    <td align="center" width="50%"><figure><figcaption>Special thanks to:</figcaption><img src="/data/sponsors/github_repo_sponsorship.png" width="100%"></figure></td>
+  </tr>
+</table>
 
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 [![Linux build status](https://github.com/catchorg/Catch2/actions/workflows/linux-simple-builds.yml/badge.svg)](https://github.com/catchorg/Catch2/actions/workflows/linux-simple-builds.yml)