diff --git a/.gitignore b/.gitignore
index 2a91fa8..5575263 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,2 @@
 __pycache__/
-venv/
 test_*.py
\ No newline at end of file
diff --git a/README.md b/README.md
index 718ab9c..0b88b3e 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@
 ### Uses keygen to generate license key.
 ![](keygen.png)
 
-## How generate license key
+## How generate license key (***keygen.exe run on windows***)
     keygen.zip in iso or img root directory,for chr image it's in /flash/rw/disk/ directory,same as winbox file manager directory
     run unzip keygen.zip
     run keygen.exe software_id
diff --git a/README_CN.md b/README_CN.md
index cd24c27..968be37 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -10,7 +10,7 @@
 ### 使用ISO或IMG内的Keygen生成授权许可
 ![](keygen.png)
 
-## 如何生成授权许可
+## 如何生成授权许可 (Keygen.exe在windows命令行下运行)
     keygen.zip在iso或者img文件的根目录下；chr镜像文件/rw/disk/目录下，和winbox打开后files目录一致。
     解压缩 keygen.zip
     运行 keygen.exe software_id