fix link

Author: LWinterberg

src/pages/post-download.astro

@@ -50,7 +50,7 @@ import FeatureCard from "../components/card/FeatureCard";
       <div class="mt-12">
         <JoinAudioDotComButton
           client:load
-          href="https://audio.com/audacity/auth/sign-up?mtm_campaign=audacityteamorg&mtm_content=post_download_button"
+          href="https://audio.com/audacity/auth/sign-in?mtm_campaign=audacityteamorg&mtm_content=post_download_buttonn"
           matomoEventName="post-download CTA"
           large
         />