refactor(readme): remove doxygen requirement

README.md

@@ -8,7 +8,6 @@ A minimal HTTP web server written in C.
 
 - myclib (on my profile)
 - [tomlc17](https://github.com/cktan/tomlc17)
-- [doxygen](https://www.doxygen.nl/) (optional, for documentation only - requires `dot`)
 
 ## Build
 

src/core/worker.c

@@ -35,7 +35,7 @@ static cws_vhost_s *get_vhost(cws_config_s *config, char *host) {
 		}
 	}
 
-	/* ?? */
+	/* This should not happen */
 	return NULL;
 }