Update 'README.md'

README.md

@@ -1,3 +1,17 @@
 # smokeshow
 
-临时静态网站托管工具
+临时静态网站托管工具
+
+## Usage
+
+```
+pip install smokeshow
+
+smokeshow generate-key
+
+export SMOKESHOW_AUTH_KEY='QYd85mFqMJsdfdfsssssspg'
+
+smokeshow upload path/to/upload
+
+
+```