Update user_manual/groupware/contacts.rst

Co-authored-by: Sebastian Krupinski <165827823+SebastianKrupinski@users.noreply.github.com>
Signed-off-by: Grigory Vodyanov <scratchx@gmx.com>

Author: GVodyanov

user_manual/groupware/contacts.rst

@@ -113,7 +113,7 @@ click on the contacts picture for the following options to appear:
 Managing multiple Contacts at a time
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-The Contacts app enables you to select multiple contacts at a time and to perform batch actions on them. To select a contact in multiselection mode, click on their profile picture, or shift click them, in the contacts list.
+The Contacts app enables you to select multiple contacts and to perform batch actions on them. To select multiple contacts, either click on each contacts profile picture individually, or click on the profile picture on the first contact then while holding the shift key click on another contact in the list to select all contacts in between the first and second one.
 
 This will bring up a menu at the top of the contacts list with various actions you can perform on the selected contacts: