Add warp indicator to the readme file

Author: Kamil Klyta

CHANGELOG.md

@@ -2,7 +2,7 @@
 ## 1.0.0
 - Stable nullsafety release.
 - **BREAKING**: Removed `prevState` from `IndicatorController` class.
-  Because flutter only marks widget that it is ready for rebuilt, it is possible that controller state will change more than once during single frame what causes one or more steps to be skipped. To still use `prevState` and `didChangeState` method, you can use `IndicatorStateHelper`. Take a look at `check_mark_indicator.dart` or `warp_indicator.dart` for example usage.
+  Because flutter only marks the widget that it is ready for rebuild, it is possible that the controller state will change more than once during a single frame what causes one or more steps to be skipped. To still use `prevState` and `didChangeState` method, you can use `IndicatorStateHelper`. Take a look at `check_mark_indicator.dart` or `warp_indicator.dart` for example usage.
 - Added `IndicatorStateHelper` class.
 - Added `IndicatorController` unit tests.
 - Added warp indicator example.

README.md

@@ -68,9 +68,9 @@ Almost all of these examples are available in the example application.
 | :--------------------------------------------------------------------------: | :----------------------------------------------------------------------------------: |
 |                ![plane_indicator](readme/plane_indicator.gif)                |                ![ice_cream_indicator](readme/ice_cream_indicator.gif)                |
 
-| Simple indicator made with `PositionedIndicatorContainer` [[SOURCE CODE](example/lib/indicators/simple_indicator.dart)] |                Envelope indicator                |
+| Warp indicator [[SOURCE CODE](example/lib/indicators/warp_indicator.dart)] |                Envelope indicator                |
 | :---------------------------------------------------------------------------------------------------------------------: | :----------------------------------------------: |
-|                                   ![simple_indicator](readme/simple_with_opacity.gif)                                   | ![letter_indicator](readme/letter_indicator.gif) |
+|                                   ![simple_indicator](readme/warp_indicator.gif)                                   | ![letter_indicator](readme/letter_indicator.gif) |
 
 | Indicator with complete state [[SOURCE CODE](example/lib/indicators/check_mark_indicator.dart)] |                               Your indicator                                |
 | :---------------------------------------------------------------------------------------------: | :-------------------------------------------------------------------------: |

example/lib/indicators/warp_indicator.dart

@@ -113,6 +113,8 @@ class _WarpIndicatorState extends State<WarpIndicator>
   Widget build(BuildContext context) {
     return CustomRefreshIndicator(
       offsetToArmed: _indicatorSize,
+      leadingGlowVisible: false,
+      trailingGlowVisible: false,
       onRefresh: () => Future.delayed(const Duration(seconds: 2)),
       child: widget.child,
       builder: (