Update topics/appwrite/index.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: kenyonj

topics/appwrite/index.md

@@ -5,7 +5,7 @@ github_url: https://github.com/appwrite/appwrite
 logo: appwrite.png
 related: vue, react, flutter, docker, backend, api, serverless, self-hosted, firebase, cloud
 released: September 3, 2019
-short_description: Appwrite is an an open-source, developer infrastructure platform for building web, mobile, and AI apps.
+short_description: Appwrite is an open-source, developer infrastructure platform for building web, mobile, and AI apps.
 topic: appwrite
 url: https://appwrite.io/
 ---