fix broken link on landing page

* Direct to /developers.html

Updating link to /developers page that does actually exist!

index.md

@@ -6,7 +6,7 @@ menu_item: true
 Have you ever wanted to take the audio output of one piece of software
 and send it to another? How about taking the output of that same program
 and send it to two others, then record the result in the first program?
-Or maybe you're a [programmer](/developers) who writes real-time audio
+Or maybe you're a [programmer](/developers.html) who writes real-time audio
 and music [applications](/applications) and who is looking for a
 cross-platform API that enables not only device sharing but also
 inter-application audio routing, and is incredibly easy to learn and