Update docs/registry.md

Co-authored-by: Raffaele Di Fazio <raffo@github.com>

docs/registry.md

@@ -5,7 +5,7 @@ It contains record type it manages, e.g.:
 * A record foo.example.com will be tracked with classic foo.example.com TXT record
 * At the same time a new TXT record will be created a-foo.example.com
 
-Prefix and suffix are extended with %{record_type} template where user can control how prefixed/suffixed records should look like.
+Prefix and suffix are extended with %{record_type} template where the user can control how prefixed/suffixed records should look like.
 
 In order to maintain compatibility, both records will be maintained for some time, in order to have downgrade possibility.