Update service_container/tags.rst

Co-Authored-By: Oskar Stark <oskarstark@googlemail.com>

Author: alexandrunastase

service_container/tags.rst

@@ -612,7 +612,8 @@ The tagged services can be prioritized using the ``priority`` attribute:
     Note that any other custom attribute will be ignored by this feature.
 
 
-Another option, which is particularly useful when using autoconfiguring tags, is to implement the ``getDefaultPriority`` static method on a collected class::
+Another option, which is particularly useful when using autoconfiguring tags, is to implement the
+static ``getDefaultPriority`` method on the service itself::
 
     // src/App/Handler/One.php
     namespace App/Handler;