Update README.md

Author: 892768447

README.md

@@ -26,12 +26,15 @@ pip install PyQtPurchasing -U
 pip install PyQtWebKit -U
 ```
 
-### For Linux
+### For RHEL_7_6-X86_64
 
 1. Install Python35+
 2. Install Qt5.13.1 to ~/Qt5.13.1
 3. clone https://github.com/PyQt5/PyQtWebKit and run `./build.sh`
 
+## Todo
+
+Replace QtWebKit to QtWebEngine
 
 ## Notice
 
@@ -43,4 +46,4 @@ If the first boot is slow  第一次运行很慢（因为在clone例子源码）
 
 ## ScreenShot
 
-![PyQtClient](ScreenShot/PyQtClient.gif)
+![PyQtClient](ScreenShot/PyQtClient.gif)