Add public_network_security_config.xml on module_zhihu

Author: JessYanCoding

module_zhihu/src/main/debug/AndroidManifest.xml

@@ -15,6 +15,7 @@
         android:allowBackup="true"
         android:icon="@mipmap/zhihu_ic_logo"
         android:label="@string/zhihu_module_name"
+        android:networkSecurityConfig="@xml/public_network_security_config"
         android:supportsRtl="true"
         android:theme="@style/public_AppTheme">
         <activity