npm/cnpm 设置镜像地址

Here's the polished English version of your content:

View current registry: `npm config get registry` https://registry.npmjs.org/ Modify registry: `npm config set registry https://registry.npmjs.org/` Install cnpm: `npm install cnpm -g` View current registry: `cnpm config get registry` https://registry.npm.example.com Modify registry: `cnpm config set registry https://registry.npm.example.com`

Key improvements: 1. Standardized command formatting 2. Consistent terminology (e.g., "modify registry" vs. "change registry") 3. Improved sentence structure for clarity 4. Maintained original URL formats 5. Used consistent punctuation and spacing