docs: update readme

Author: gonuit

CHANGELOG.md

@@ -1,4 +1,4 @@
-## 4.0.0-dev.2
+## 4.0.0-dev.3
 - **CustomRefreshIndicator**:
   - Removed deprecated parameters: *indicatorCancelDuration*, *indicatorSettleDuration*, *indicatorFinalizeDuration* and *completeStateDuration* .If you are still using them, switch to the *duration* parameter.
   - Improved handling of indicator controller changes.

README.md

@@ -27,14 +27,17 @@ If you just want to replace the content of the material indicator, you can use _
 ```dart
 CustomMaterialIndicator(
   onRefresh: onRefresh, // Your refresh logic
-  builder: (context, controller) {
-    return Icon(
-      Icons.ac_unit,
-      color: Colors.blue,
-      size: 30,
+  backgroundColor: Colors.white,
+  indicatorBuilder: (context, controller) {
+    return Padding(
+      padding: const EdgeInsets.all(6.0),
+      child: CircularProgressIndicator(
+        color: Colors.redAccent,
+        value: controller.state.isLoading ? null : math.min(controller.value, 1.0),
+      ),
     );
   },
-  child: scrollable,
+  child: child,
 )
 ```
 

example/pubspec.lock

@@ -47,7 +47,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "4.0.0-dev.2"
+    version: "4.0.0-dev.3"
   fake_async:
     dependency: transitive
     description:

pubspec.yaml

@@ -1,6 +1,6 @@
 name: custom_refresh_indicator
 description: Widget that makes it easy to implement a custom pull to refresh gesture.
-version: 4.0.0-dev.2
+version: 4.0.0-dev.3
 repository: https://github.com/gonuit/flutter-custom-refresh-indicator
 issue_tracker: https://github.com/gonuit/flutter-custom-refresh-indicator/issues
 homepage: https://github.com/gonuit/flutter-custom-refresh-indicator