Update setNumber.md

Author: DeveloperTryingToCodeLikeOtherOfThem

docs/reference/buffer/setNumber.md

@@ -17,5 +17,5 @@ Value: The meaning of the index.
 
 ## See Also
 [Buffers](https://github.com/DeveloperTryingToCodeLikeOtherOfThem/pxt-hardware-programming-docs/blob/master/docs/buffers.md)
-[Get Number](https://github.com/DeveloperTryingToCodeLikeOtherOfThem/pxt-hardware-programming-docs/blob/master/docs/getNumber.md)
+[Get Number](https://github.com/DeveloperTryingToCodeLikeOtherOfThem/pxt-hardware-programming-docs/blob/master/reference/buffer/getNumber.md)