FIX: Error in tutorial, thanks Jean Lindeman for reporting.

c.f. https://lists.afpy.org/pipermail/traductions/2017-September/000087.html

Author: JulienPalard

tutorial/introduction.po

@@ -8,14 +8,14 @@ msgstr ""
 "Project-Id-Version: Python 3.6\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2017-08-10 00:49+0200\n"
-"PO-Revision-Date: 2017-08-10 00:54+0200\n"
+"PO-Revision-Date: 2017-09-05 16:04+0200\n"
 "Last-Translator: Julien Palard <julien@palard.fr>\n"
 "Language-Team: \n"
 "Language: fr\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Generator: Poedit 1.8.11\n"
+"X-Generator: Poedit 2.0.2\n"
 
 #: ../Doc/tutorial/introduction.rst:5
 msgid "An Informal Introduction to Python"
@@ -498,7 +498,7 @@ msgid ""
 "Unlike strings, which are :term:`immutable`, lists are a :term:`mutable` "
 "type, i.e. it is possible to change their content::"
 msgstr ""
-"Mais à la différence des listes qui sont :term:`immuable`\\s, les listes "
+"Mais à la différence des chaînes qui sont :term:`immuable`\\s, les listes "
 "sont :term:`mutable`\\s : il est possible de changer leur contenu : ::"
 
 #: ../Doc/tutorial/introduction.rst:409