📝 Add JetBrains acknowledgement

Author: AlexV525

.github/jetbrains-variant.png

@@ -382,3 +382,11 @@ W/Glide   (21133): Failed to find GeneratedAppGlideModule. You should include an
 
 `Glide` 通过注解来保证单例，防止单例或版本之间的冲突，而因为`photo_manager`使用了`Glide`提供部分图片功能，所以使用它的项目必须实现自己的`AppGlideModule`。 请移步[Android](#android)部分了解如何实现。
 
+
+## 致谢
+
+> IntelliJ IDEA 的每个方面都旨在最大化开发者生产力。结合智能编码辅助与符合人体工程学的设计，让开发不仅高效，更成为一种享受。
+
+感谢 [JetBrains](https://www.jetbrains.com/?from=fluttercandies) 为开源项目提供免费的 [IntelliJ IDEA](https://www.jetbrains.com/idea/?from=fluttercandies) 等 IDE 的授权。
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+[<img src=".github/jetbrains-variant.png" width="200"/>](https://www.jetbrains.com/?from=fluttercandies)

README-ZH.md

@@ -408,3 +408,11 @@ W/Glide   (21133): Failed to find GeneratedAppGlideModule. You should include an
 ```
 
 `Glide` needs annotation to keep singleton, prevent conflict between instances and versions, so while the photo manager uses `Glide` to implement image features, the project which import this should define its own `AppGlideModule`. See [Android](#android) section for implementation.
+
+## Acknowledgement
+
+> Every aspect of IntelliJ IDEA has been designed to maximize developer productivity. Together, intelligent coding assistance and ergonomic design make development not only productive but also enjoyable.
+
+Thanks to [JetBrains](https://www.jetbrains.com/?from=fluttercandies) for allocating free open-source licenses for IDEs such as [IntelliJ IDEA](https://www.jetbrains.com/idea/?from=fluttercandies).
+
+[<img src=".github/jetbrains-variant.png" width="200"/>](https://www.jetbrains.com/?from=fluttercandies)