Update index.md

Author: laurent22

topics/joplin/index.md

@@ -4,9 +4,9 @@ display_name: Joplin
 github_url: https://github.com/laurent22/joplin
 logo: joplin.png
 released: '2016'
-short_description: Secure note-taking app with synchornisation capabilities
+short_description: Secure note-taking app with synchronisation capabilities.
 topic: joplin
 url: https://joplinapp.org
 wikipedia_url: https://en.wikipedia.org/wiki/Joplin_(software)
 ---
-Joplin is a note-taking app for Windows, macOS, Linux, Android and iOS. It focuses on security and extensibility.
+Joplin is a note-taking app for Windows, macOS, Linux, Android and iOS. It focuses on security and extensibility.