DOC: minor typo fix in documentation

"http-reqsponse" => "http-response"

Signed-off-by: Godbach <nylzhaowei@gmail.com>
diff --git a/doc/configuration.txt b/doc/configuration.txt
index 8feee6e..5140ff1 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -2875,7 +2875,7 @@
 
   There is no limit to the number of http-response statements per instance.
 
-  It is important to know that http-reqsponse rules are processed very early in
+  It is important to know that http-response rules are processed very early in
   the HTTP processing, before "reqdel" or "reqrep" rules. That way, headers
   added by "add-header"/"set-header" are visible by almost all further ACL
   rules.