callback event reception order (#2333)

* callback event reception order

* Update docs/docsite/rst/plugins/callback.rst

Co-authored-by: Abhijeet Kasurde <[email protected]>

---------

Co-authored-by: Abhijeet Kasurde <[email protected]>

Author: bcoca

docs/docsite/rst/plugins/callback.rst

@@ -76,7 +76,7 @@ There are three types of callback plugins:
 
 :stdout callback plugins:
 
-  These plugins handle the main console output. Only one of these can be active.
+  These plugins handle the main console output. Only one can be active. They always get the event first; the rest of the callbacks get the event in the order they are configured.
 
 :aggregate callback plugins: