Update sponsors.

README.md

@@ -25,7 +25,8 @@ hooks for controlling what occurs when authentication succeeds or fails.
   <a href="https://www.descope.com/?utm_source=PassportJS&utm_medium=referral&utm_campaign=oss-sponsorship"><b>Drag and drop your auth</b><br/>Add authentication and user management to your consumer and business apps with a few lines of code.</a>
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-  <a href="https://fusionauth.io/"><img src="https://raw.githubusercontent.com/jaredhanson/passport/master/sponsors/fusionauth.svg" width="275"></a><br/>
+  <a href="https://fusionauth.io/?utm_source=passportjs&utm_medium=referral&utm_campaign=sponsorship"><img src="https://raw.githubusercontent.com/jaredhanson/passport/master/sponsors/fusionauth.png" width="275"></a><br/>
+  <a href="https://www.descope.com/?utm_source=PassportJS&utm_medium=referral&utm_campaign=oss-sponsorship"><b>Auth. Built for Devs, by Devs</b><br/>Add login, registration, SSO, MFA, and a bazillion other features to your app in minutes. Integrates with any codebase and installs on any server, anywhere in the world.</a>
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