doc: remove a file (#815)

Remove doc/working_with_javascript_values.md because it was a stub and
the matter is covered elsewhere.

Fixes: #797

README.md

@@ -83,7 +83,7 @@ The following is the documentation for node-addon-api.
 
  - [Full Class Hierarchy](doc/hierarchy.md)
  - [Addon Structure](doc/addon.md)
- - Basic Types:
+ - Data Types:
     - [Env](doc/env.md)
     - [CallbackInfo](doc/callbackinfo.md)
     - [Reference](doc/reference.md)
@@ -100,14 +100,6 @@ The following is the documentation for node-addon-api.
             - [Array](doc/array.md)
             - [ObjectReference](doc/object_reference.md)
     - [PropertyDescriptor](doc/property_descriptor.md)
- - [Error Handling](doc/error_handling.md)
-    - [Error](doc/error.md)
-      - [TypeError](doc/type_error.md)
-      - [RangeError](doc/range_error.md)
- - [Object Lifetime Management](doc/object_lifetime_management.md)
-    - [HandleScope](doc/handle_scope.md)
-    - [EscapableHandleScope](doc/escapable_handle_scope.md)
- - [Working with JavaScript Values](doc/working_with_javascript_values.md)
     - [Function](doc/function.md)
         - [FunctionReference](doc/function_reference.md)
     - [ObjectWrap](doc/object_wrap.md)
@@ -117,6 +109,13 @@ The following is the documentation for node-addon-api.
     - [TypedArray](doc/typed_array.md)
       - [TypedArrayOf](doc/typed_array_of.md)
     - [DataView](doc/dataview.md)
+ - [Error Handling](doc/error_handling.md)
+    - [Error](doc/error.md)
+      - [TypeError](doc/type_error.md)
+      - [RangeError](doc/range_error.md)
+ - [Object Lifetime Management](doc/object_lifetime_management.md)
+    - [HandleScope](doc/handle_scope.md)
+    - [EscapableHandleScope](doc/escapable_handle_scope.md)
  - [Memory Management](doc/memory_management.md)
  - [Async Operations](doc/async_operations.md)
     - [AsyncWorker](doc/async_worker.md)