Proguard 的配置文件错了

README.md文件里面Proguard的配置是:

```
-keep class * extends java.lang.annotation.Annotation
-keepclasseswithmembernames class * {
native ;
}
```

这样做，貌似MethodReplace的类名不会混淆，但类的成员函数会被混淆，从而会导致加载patch包时找不到对应的MethodReplace类。

我修改成就OK了。

```
-keep class com.alipay.euler.andfix.** {*;}
```

Start with the Proguard configuration block in README.md and compare it with the reported MethodReplace loading failure. Done means the documented configuration preserves the relevant com.alipay.euler.andfix classes and patch-package loading can find MethodReplace.

Written by the indexing model from the issue text.