docs: update common.md for alist-proxy worker usage (#356)

Author: sigvoid

docs/guide/drivers/common.md

@@ -100,7 +100,8 @@ You can use `cloudflare workers` for proxy, just fill in the `cloudflare workers
 The workers code can be found at https://github.com/alist-org/alist-proxy/blob/main/alist-proxy.js. in:
 
 - ADDRESS: your Alist address, The protocol header must be added, and cannot be followed by /. Such as `https://pan.nn.ci`;
-- TOKEN: you can get in `Other settings` in your Alist manage page.
+- TOKEN: you can get in `Other settings` in your Alist manage page;
+- WORKER_ADDRESS: your worker address, which should normally be same as **Download proxy URL**.
 
 :warning: Cloudflare Workers free CDN only supports (regardless of domestic or foreign) **http80 port** and **https443 port**, from group friend test
 

docs/zh/guide/drivers/common.md

@@ -96,7 +96,8 @@ flowchart LR
 Workers 代码可以在 https://github.com/alist-org/alist-proxy/blob/main/alist-proxy.js 找到，实际使用时需要替换其中的这两个变量：
 
 - ADDRESS: 你的 AList 地址，必须加上协议头，后面不能跟 `/`。如 `https://pan.nn.ci`；
-- TOKEN: 在 AList 管理页面中进入“其他设置”得到。
+- TOKEN: 在 AList 管理页面中进入“其他设置”得到；
+- WORKER_ADDRESS: 你的 Worker 地址，通常与 **下载代理URL** 相同。
 
 :warning: Cloudflare Workers 免费CDN支持兼容(不论国内还是国外)的只有 **http80端口** 和 **https443端口**，来自群友测试