cleanup

Reverted GetWidget to original implementation ( to use with `@override`), added docs, renamed "name" to "tag" in `Get.create()` to be consistent with the rest of the GetInstance() methods.

 import 'package:get_core/get_core.dart';
+
 import 'get_instance.dart';
 
 extension Inst on GetInterface {
@@ -47,6 +48,7 @@ extension Inst on GetInterface {
   /// So, if you call `Get.delete<T>()` the "instance factory" used in this
   /// method ([Get.create<T>()]) will be removed, but NOT the instances
   /// already created by it.
+  /// Uses `tag` as the other methods.
   ///
   /// Example:
   ///
@@ -55,8 +57,8 @@ extension Inst on GetInterface {
   /// Repl b = find();
   /// print(a==b); (false)```
   void create<S>(InstanceBuilderCallback<S> builder,
-          {String name, bool permanent = true}) =>
-      GetInstance().create<S>(builder, name: name, permanent: permanent);
+          {String tag, bool permanent = true}) =>
+      GetInstance().create<S>(builder, tag: tag, permanent: permanent);
 
   /// Finds a Instance of the required Class <[S]>(or [tag])
   /// In the case of using [Get.create()], it will generate an Instance

@@ -116,11 +116,11 @@ class GetInstance {
   /// print(a==b); (false)```
   void create<S>(
     InstanceBuilderCallback<S> builder, {
-    String name,
+    String tag,
     bool permanent = true,
   }) {
     _insert(
-        isSingleton: false, name: name, builder: builder, permanent: permanent);
+        isSingleton: false, name: tag, builder: builder, permanent: permanent);
   }
 
   /// Injects the Instance [S] builder into the [_singleton] HashMap.

@@ -11,9 +11,13 @@ import 'package:get_instance/get_instance.dart';
 /// }
 ///
 /// class AwesomeView extends GetView<AwesomeController> {
-///   /// if you need you can pass the tag for your controller
-///   /// in the super constructor.
-///   AwesomeView({Key key}):super(key:key, tag:"myControllerTag");
+///   /// if you need you can pass the tag for
+///   /// Get.find<AwesomeController>(tag:"myTag");
+///   @override
+///   final String tag = "myTag";
+///
+///   AwesomeView({Key key}):super(key:key);
+///
 ///   @override
 ///   Widget build(BuildContext context) {
 ///     return Container(
@@ -24,9 +28,9 @@ import 'package:get_instance/get_instance.dart';
 /// }
 ///``
 abstract class GetView<T> extends StatelessWidget {
-  const GetView({Key key, this.tag}) : super(key: key);
+  const GetView({Key key}) : super(key: key);
 
-  final String tag;
+  final String tag = null;
 
   T get controller => GetInstance().find<T>(tag: tag);