refactor: 将目录结构从 www 重命名为 nginx

- 将 default、git、note 目录下的 README.md 文件从 www目录移动到 nginx 目录
- 更新文件内容中的下载路径，从 www 改为 nginx- 修改 note 目录下的 deploy.sh 脚本执行路径

nginx/note/nginx.conf

@@ -0,0 +1,43 @@
+server {
+    listen 80 ;
+    listen 443 ssl http2 ;
+    server_name note.sugarscat.cn;
+
+    # acme.sh
+    location ^~ /.well-known/acme-challenge {
+        allow all;
+        root /var/www/html;
+    }
+    # 重定向
+    if ($scheme = http) {
+        return 301 https://$host$request_uri;
+    }
+
+    # ssl 设置
+    ssl_certificate /etc/nginx/ssl/fullchain.pem;
+    ssl_certificate_key /etc/nginx/ssl/privkey.pem;
+
+    ssl_protocols TLSv1.3 TLSv1.2 TLSv1.1 TLSv1;
+    ssl_ciphers EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;
+    ssl_prefer_server_ciphers on;
+    ssl_session_cache shared:SSL:10m;
+    ssl_session_timeout 10m;
+    add_header Strict-Transport-Security "max-age=31536000";
+    error_page 497 https://$host$request_uri;
+    proxy_set_header X-Forwarded-Proto https;
+    ssl_stapling on;
+    ssl_stapling_verify on;
+
+    root /var/www/note;
+    index index.html;
+    
+    try_files $uri $uri.html $uri/ =404;
+
+    error_page 404 /404.html;
+    error_page 403 /404.html;
+
+    location ~* ^/assets/ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+}