chore: correct nginx script

- Add workers
- Add correct media type to /post

Author: steve-chavez

nix/nginx/conf/custom.conf

@@ -24,9 +24,10 @@ location /post {
   if ($request_method != 'POST'){
       return 405;
   }
-  if ($http_accept != "application/json") {
+  if ($http_content_type  != "application/json") {
       return 406;
   }
+  default_type application/json;
   echo_read_request_body;
   echo $request_body;
 }

nix/nginx/conf/nginx.conf

@@ -1,7 +1,11 @@
 daemon off;
 pid        ./nginx.pid;
 
-events {}
+worker_processes auto;
+
+events {
+  worker_connections 1024;
+}
 
 http {