nginx config minor bug fixed

without ^~, resources in folders like /static cannot be accessed.

Author: Sim

docs/guide.md

@@ -198,7 +198,7 @@ At this point, you should be able to access code-server via
        listen [::]:80;
        server_name mydomain.com;
 
-       location / {
+       location ^~ / {
          proxy_pass http://localhost:8080/;
          proxy_set_header Host $host;
          proxy_set_header Upgrade $http_upgrade;
@@ -575,7 +575,7 @@ At this point, you should be able to access code-server via
        listen [::]:80;
        server_name mydomain.com;
 
-       location / {
+       location ^~ / {
          proxy_pass http://localhost:8080/;
          proxy_set_header Host $host;
          proxy_set_header Upgrade $http_upgrade;