[ fix ] Media link to Swiss sirens post

Author: CodingCellist

content/en/post/happy-swiss-siren-day/index.md

@@ -81,6 +81,6 @@ soon...
 (Oh, and since you're probably curious as to what it sounds like, here you go!)
 
 <video height="1080" width="1920" controls>
-  <source src="/media/sirens.mp4" type="video/mp4">
+  <source src="sirens.mp4" type="video/mp4">
 </video>