[gnome-control-center/gnome-3-26] Updated Czech translation

[Marek Černocký <mcernocky src gnome org>]

commit 326c7c723f4bc534659647386d991fa703d92079
Author: Marek Cernocky <marek_cernocky conel cz>
Date:   Sun Oct 1 23:27:37 2017 +0200

    Updated Czech translation

 po/cs.po |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/po/cs.po b/po/cs.po
index 3edb60b..b967b64 100644
--- a/po/cs.po
+++ b/po/cs.po
@@ -3837,7 +3837,7 @@ msgstr ""
 
 #: ../panels/online-accounts/online-accounts.ui.h:4
 msgid "Add an account"
-msgstr "Přidání účtu"
+msgstr "Přidat účet"
 
 #: ../panels/online-accounts/online-accounts.ui.h:5
 msgid "Remove Account"