[Minor] Fix copypasta (#4469)

conf/modules.d/aws_s3.conf

@@ -1,16 +1,16 @@
 # Please don't modify this file as your changes might be overwritten with
 # the next update.
 #
-# You can modify 'local.d/asn.conf' to add and merge
+# You can modify 'local.d/aws_s3.conf' to add and merge
 # parameters defined inside this section
 #
-# You can modify 'override.d/asn.conf' to strictly override all
+# You can modify 'override.d/aws_s3.conf' to strictly override all
 # parameters defined inside this section
 #
 # See https://rspamd.com/doc/faq.html#what-are-the-locald-and-overrided-directories
 # for details
 #
-# Module documentation can be found at  https://rspamd.com/doc/modules/asn.html
+# Module documentation can be found at  https://rspamd.com/doc/modules/aws_s3.html
 
 aws_s3 {
   # Required attributes