diff --git a/web_warning_sound/README.rst b/web_warning_sound/README.rst
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--- a/web_warning_sound/README.rst
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-This plugin allows to create modules that can play sound files.
-It can be used in on_change methods or when raising an orm_except.
-
-The sound files need to be located in the module's static directory::
-
-module_name/static/path/to/audio/file/mysound.wav
-
-Then the web client can access these files using the url path::
-
-/module_name/static/path/to/audio/file/mysound.wav
-
-
-To use it in on_change methods just add the the url path of the
-audio file in the result dictionary under the key 'sound'. Example::
-
-    res['sound'] = '/module_name/static/path/to/audio/file/mysound.wav'
-    res['warning'] = {
-        'title': _('Cannot do something'),
-        'message': _('The reason why...'),
-    }
-    return res
-
-On orm_except put the url path of the file inside '{{}}' as in this example::
-
-    raise orm_except(
-        'Cannot do something',
-        'The reason why... {{ sound: /module_name/static/path/to/audio/file/mysound.wav }}'
-    )