Update library/unittest.mock-examples.po

Co-authored-by: Panagiotis Skias <panagiotis.skias@gmail.com>

Author: mgiannopoulos24

library/unittest.mock-examples.po

@@ -19,7 +19,7 @@ msgstr ""
 
 #: library/unittest.mock-examples.rst:2
 msgid ":mod:`!unittest.mock` --- getting started"
-msgstr ":mod:`!unittest.mock` --- έναρξη χρήσης"
+msgstr ":mod:`!unittest.mock` --- ξεκινώντας"
 
 #: library/unittest.mock-examples.rst:27
 msgid "Using Mock"