fix: Update installation URLs in README.md for accuracy

- Corrected the download URLs in the installation instructions for both Linux/macOS and Windows PowerShell to point to the raw content on GitHub.
- This change ensures users can successfully retrieve the installation script without encountering broken links.

These updates enhance the reliability of the documentation and improve the user experience during the installation process.

README.md

@@ -65,7 +65,7 @@ this is a mistake.
 #### Linux/macOS
 
 ```bash
-curl -fsSL https://github.com/yuaotian/go-cursor-help/raw/refs/heads/master/install.sh | sudo bash
+curl -fsSL https://raw.githubusercontent.com/yuaotian/go-cursor-help/refs/heads/master/install.sh | sudo bash
 ```
 
 #### Windows PowerShell
@@ -208,7 +208,7 @@ this is a mistake.
 
 
 ```bash
-curl -fsSL https://github.com/yuaotian/go-cursor-help/raw/refs/heads/master/install.sh  | sudo bash
+curl -fsSL https://raw.githubusercontent.com/yuaotian/go-cursor-help/refs/heads/master/install.sh  | sudo bash
 ```
 
 #### Windows PowerShell