updated connector readme (#4086)

content/en/docs/collector/building/connector.md

@@ -44,7 +44,8 @@ pipeline and send it to the metrics pipeline. Historically, some processors
 transmitted data by making use of a work-around that follows a bad practice
 where a processor directly exports data after processing. The connector
 component solves the need for this work-around and the processors that used the
-work around have been deprecated.
+work around have been deprecated. On the same line, above mentioned processors
+are also now deprecated in recent releases and are replaced by the connectors.
 
 Additional details about the connector's full capabilities can be found at the
 following links: