feat(github): let people know about dotnet for sponsors (#5044)

* Money goes brrrrr

Added note about sponsors with recurring subscriptions.

* Update README.md

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

---------

Co-authored-by: Chris Titus <contact@christitus.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

README.md

@@ -80,6 +80,8 @@ These are the sponsors that help keep this project alive with monthly contributi
 
 <!-- sponsors --><a href="https://github.com/dwelfusius"><img src="https:&#x2F;&#x2F;github.com&#x2F;dwelfusius.png" width="60px" alt="User avatar: " /></a><a href="https://github.com/mews-se"><img src="https:&#x2F;&#x2F;github.com&#x2F;mews-se.png" width="60px" alt="User avatar: Martin" /></a><a href="https://github.com/jdiegmueller"><img src="https:&#x2F;&#x2F;github.com&#x2F;jdiegmueller.png" width="60px" alt="User avatar: Jason A. Diegmueller" /></a><a href="https://github.com/robertsandrock"><img src="https:&#x2F;&#x2F;github.com&#x2F;robertsandrock.png" width="60px" alt="User avatar: RMS" /></a><a href="https://github.com/paulsheets"><img src="https:&#x2F;&#x2F;github.com&#x2F;paulsheets.png" width="60px" alt="User avatar: Paul" /></a><a href="https://github.com/djones369"><img src="https:&#x2F;&#x2F;github.com&#x2F;djones369.png" width="60px" alt="User avatar: Dave J  (WhamGeek)" /></a><a href="https://github.com/anthonymendez"><img src="https:&#x2F;&#x2F;github.com&#x2F;anthonymendez.png" width="60px" alt="User avatar: Anthony Mendez" /></a><a href="https://github.com/FatBastard0"><img src="https:&#x2F;&#x2F;github.com&#x2F;FatBastard0.png" width="60px" alt="User avatar: " /></a><a href="https://github.com/DursleyGuy"><img src="https:&#x2F;&#x2F;github.com&#x2F;DursleyGuy.png" width="60px" alt="User avatar: DursleyGuy" /></a><a href="https://github.com/DwayneTheRockLobster1"><img src="https:&#x2F;&#x2F;github.com&#x2F;DwayneTheRockLobster1.png" width="60px" alt="User avatar: " /></a><a href="https://github.com/KieraKujisawa"><img src="https:&#x2F;&#x2F;github.com&#x2F;KieraKujisawa.png" width="60px" alt="User avatar: Kiera Meredith" /></a><a href="https://github.com/seanh1995"><img src="https:&#x2F;&#x2F;github.com&#x2F;seanh1995.png" width="60px" alt="User avatar: Sean (ANGRYxScotsman)" /></a><a href="https://github.com/Abs313a"><img src="https:&#x2F;&#x2F;github.com&#x2F;Abs313a.png" width="60px" alt="User avatar: Abs" /></a><a href="https://github.com/kydoa"><img src="https:&#x2F;&#x2F;github.com&#x2F;kydoa.png" width="60px" alt="User avatar: Daniel Scheuermann" /></a><a href="https://github.com/hafiz-muhammad"><img src="https:&#x2F;&#x2F;github.com&#x2F;hafiz-muhammad.png" width="60px" alt="User avatar: Abdul Hafiz Muhammad" /></a><a href="https://github.com/F-L-Perez"><img src="https:&#x2F;&#x2F;github.com&#x2F;F-L-Perez.png" width="60px" alt="User avatar: F. L. Pérez" /></a><!-- sponsors -->
 
+*<sub>Sponsors with a recurring subscription also get access to the .NET alternative.</sub>
+
 ---
 
 ## Contributors