Add explicit `JsArray` type annotation to code example
@@ -562,7 +562,7 @@ impl JsObject {
/// # use neon::prelude::*;
/// # fn foo(mut cx: FunctionContext) -> JsResult<JsArray> {
/// // Create a new empty array:
-/// let a = cx.empty_array();
+/// let a: Handle<JsArray> = cx.empty_array();
///
/// // Create some new values to push onto the array:
/// let n = cx.number(17);
