Fix typo

Author: RDelorier

templates/nginx.conf.j2

@@ -1,5 +1,5 @@
 user  {{ main_template_user }};
-worker_processes  {{ main_teamplate_worker_processes }};
+worker_processes  {{ main_template_worker_processes }};
 
 error_log  /var/log/nginx/error.log {{ main_template_error_level }};
 pid        /var/run/nginx.pid;