Doc: Update Echoplugin Example

- screenshot
- connect syntax

Task-number: QTBUG-60635
Change-Id: I18c3e1fef5c623565bbf6cf33bf88e9d8135d8be
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>
This commit is contained in:
Nico Vertriest 2018-04-23 13:07:11 +02:00
parent 35e31149c2
commit 42e4a6531d

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