diff --git a/Readme.md b/Readme.md
index b22ddbd..e432405 100644
--- a/Readme.md
+++ b/Readme.md
@@ -8,15 +8,21 @@ pacproxy is a proxy that parses pac file and start a simple http proxy which wil
 
 Ensure that `Go（>=1.11.5）` environment has been properly setup.
 
-```bash
+```go
 go get -u -v github.com/darren/pacroxy
 ```
 
 
 ## Usage
 
-```
+```bash
+# Load pac from local file
 pacroxy -p wpad.dat -l 127.0.0.1:9999
+
+# Load pac from remote file
+pacroxy -p http://wpad.local/wpad.dat -l 127.0.0.1:9999
+
+# To test
 curl -x 127.0.0.1:9999 https://example.com
 ```