typo fix + demo video linked properly

Author: Smoothex

README.md

@@ -8,10 +8,10 @@ Check out the documentation on our [GitHub Pages](https://amosproj.github.io/amo
 Using the Teams to NextCloud plugin will provide the user with an alternative to the already built-in Sharepoint plugin for storing and managing data inside of Microsoft Teams. Users will be able to upload, download, modify data that is stored in NextCloud from inside of Teams as this is a core functionality of data management software. Additionaly, our plugin will enable the users to bind a shared folder to a specific channel, so that only the members of this channel will be able to see it and work on it.
 
 ## DEMO
-  To see our app in action we have a [small Demo Video](Deliverables/sprint-12-demo-day-video.mkv)
+  To see our app in action we have prepared a [short demo video](https://www.youtube.com/watch?v=HUPnUDiOAHI).
 
 ## Running and developing
-  For instructions on how to run the app and develop it check the README inside the [frontend](frontend) folder
+  For instructions on how to run the app and develop it check the README inside the [frontend](frontend) folder.
 
 ## Documentation