Update object_reference.md (#827)

kidneysolo · web-flow · commit f5fad239fa2f · 2020-10-28T17:14:41.000-04:00
diff --git a/doc/object_reference.md b/doc/object_reference.md
@@ -8,7 +8,7 @@ For more general information on references, please consult [`Napi::Reference`](r
 ```cpp
 #include <napi.h>
 
-using namescape Napi;
+using namespace Napi;
 
 void Init(Env env) {
 
