Remove doppler from sponsors

readme.md

@@ -28,20 +28,6 @@
   </p>
 
   <sup>Special thanks to:</sup>
-  <br />
-  <p>
-    <a href="https://www.doppler.com/?utm_campaign=github_repo&utm_medium=referral&utm_content=kamranahmedse&utm_source=github">
-      <div>
-        <img src="./.github/sponsors/doppler-logo.svg?v2" width="300" alt="Doppler" >
-      </div>
-      <b>All your environment variables, in one place</b>
-      <div>
-        <sub>Stop struggling with scattered API keys, hacking together home-brewed tools,</sub>
-        <br>
-        <sup>and avoiding access controls. Keep your team and servers in sync with Doppler.</sup>
-      </div>
-    </a>
-  </p>
   <br>
   <p>
     <a href="https://oss.capital">