修改错别字

Chapter2/README.md

@@ -1,6 +1,6 @@
 # 第二章
 
-本文章所讲的性能优化指的是app响应用户操作和渲染画面的速度。内存大小优化、包体积优化不在此列。
+本文章所讲的性能优化指的是App响应用户操作和渲染画面的速度。内存大小优化、包体积优化不在此列。
 
 本文章主要围绕官方的《flutter性能优化最佳实践》和keframe插件的分帧渲染优化方案做实践总结。
 

Chapter2/image.md

@@ -3,7 +3,7 @@
 像Image.assets(),Image.network()或者decorationImage这样的图片widget,底层解码调用了硬件解码，所以解码效率比较高，在解码速度方面可以优化的空间也很小。
 
 
-### 图片的性能优化可以从以下两个方面入手:
+### 图片的性能优化可以从以下三个方面入手:
 
 ##### 1.图片的本地缓存。请求过的图片，缓存在磁盘里面，在有效期之内，都不用再从网络请求了。cached_network_image就是做这个事情的。
 

docs/Chapter1/index.html

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docs/Chapter1/key.html

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docs/Chapter1/pipeline.html

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docs/Chapter1/repaintBoundary.html

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