Fix trailing slash newline in changelog (#32545)

CHANGELOG.md

@@ -67,7 +67,7 @@ The following changelog entries focus on changes visible to users, administrator
   ```html
   <meta name="fediverse:creator" content="username@domain" />
   ```
-  On the API side, this is represented by a new `authors` attribute to the `PreviewCard` entity: https://docs.joinmastodon.org/entities/PreviewCard/#authors\
+  On the API side, this is represented by a new `authors` attribute to the `PreviewCard` entity: https://docs.joinmastodon.org/entities/PreviewCard/#authors \
   Users can allow arbitrary domains to use `fediverse:creator` to credit them by visiting `/settings/verification`.\
   This is federated as a new `attributionDomains` property in the `http://joinmastodon.org/ns` namespace, containing an array of domain names: https://docs.joinmastodon.org/spec/activitypub/#properties-used-1
 - **Add in-app notifications for moderation actions and warnings** (#30065, #30082, and #30081 by @ClearlyClaire)\