Update fromArray.md

Author: DeveloperTryingToCodeLikeOtherOfThem

docs/reference/buffer/fromArray.md

@@ -9,4 +9,7 @@ Allocates a new buffer from a dynamic array into bytes.
 
 ## Example
 Set an array that have 5 indices into a buffer.
+
+``` ts
 Buffer.fromArray([0, 1, 2, 3, 4])
+```