补充使用虚拟环境步骤，打包前使用pytest做基本测试

README-en.md

@@ -72,8 +72,11 @@ xanalyzer -u "https://www.baidu.com/s?wd=hello"
 git clone https://github.com/qux-bbb/xanalyzer
 cd xanalyzer
 virtualenv venv
+# use venv in windws: .\venv\Scripts\activate
+# use venv in linux: source venv/bin/activate
 pip install -r requirements.txt
 python setup.py develop
+# exit venv: deactivate
 ```
 Then you can develop and debug with pycharm or vscode  
 

README.md

@@ -72,8 +72,11 @@ xanalyzer -u "https://www.baidu.com/s?wd=hello"
 git clone https://github.com/qux-bbb/xanalyzer
 cd xanalyzer
 virtualenv venv
+# windws使用虚拟环境: .\venv\Scripts\activate
+# linux使用虚拟环境: source venv/bin/activate
 pip install -r requirements.txt
 python setup.py develop
+# 退出虚拟环境: deactivate
 ```
 这样之后就可以用pycharm或vscode开发调试了  
 
@@ -82,10 +85,14 @@ python setup.py develop
 
 打包前确保版本号和CHANGELOG.md已更新，清空dist文件夹  
 
-安装依赖并打包：  
+安装依赖、通过测试项、打包：  
 ```r
+# windws使用虚拟环境: .\venv\Scripts\activate
+# linux使用虚拟环境: source venv/bin/activate
 pip install -r requirements.my.txt
+pytest
 python setup.py sdist bdist_wheel
+# 退出虚拟环境: deactivate
 ```
 
 重新打开一个命令行，转到dist文件夹下本地安装，检查基本功能，举例：  

requirements.my.txt

@@ -1,3 +1,4 @@
+pytest==7.3.1
 setuptools==65.5.1
 wheel==0.38.1
 twine==3.8.0