Add port configuration

Author: Alphonse

0x0E-web_stack_debugging_1/0-nginx_likes_port_80

@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 # Fix nginx error
-apt-get -y update
-apt-get -y install nginx
+sudo apt-get -y update
+sudo apt-get -y install nginx
+sudo ufw allow 'Nginx HTTP'
 service nginx restart