Merge pull request #923 from ExpressionEngine/test/fix-spelling-mistake

Fix spelling mistake

Author: matthewjohns0n

docs/config/config-files.md

@@ -47,7 +47,7 @@ The mime types are grouped by file type. You can add the allowed mime types dire
 
 `proxy.php`
 
-If the server is behind a reverse proxy or load balancer the system will need special configuration to discover a user's real IP address. If the IP address passed along by the server matches a value or range specificed in this configuration file the system will look at the request headers to determine the real IP address.
+If the server is behind a reverse proxy or load balancer the system will need special configuration to discover a user's real IP address. If the IP address passed along by the server matches a value or range specified in this configuration file the system will look at the request headers to determine the real IP address.
 
 Please consult with the provider of your reverse proxy or load balancing solutions for the IP addresses or ranges to use. Some providers will let you know the exact IP address of the load balancer, while others will give you a range. Here are the links with information for some common providers: [CloudFlare](https://www.cloudflare.com/ips/), [Google Cloud](https://cloud.google.com/load-balancing/docs/https/#firewall_rules), [AWS Elastic](https://docs.aws.amazon.com/elasticloadbalancing/latest/network/network-load-balancers.html)