update docs

hugo/content/overview.md

@@ -28,7 +28,7 @@ NGINX Agent runs as a companion process on a system running NGINX. It provides g
 
 ## Configuration Management
 
-NGINX Agent provides an API interface for submission of updated configuration files. Upon receipt of a new file, it checks the output of `nginx -V` to determine the location of existing configurations. It then validates the new configuration with `nginx -t` before applying it via a NOHUP signal to the NGINX master process.
+NGINX Agent provides an API interface for submission of updated configuration files. Upon receipt of a new file, it checks the output of `nginx -V` to determine the location of existing configurations. It then validates the new configuration with `nginx -t` before applying it via a signal HUP to the NGINX master process.
 
 ## Collecting Metrics