[gnome-nibbles] Add Polish help screenshots

[Piotr Drąg <piotrdrag src gnome org>]

commit 2cb3be6bdecfb7bee67d57a1e9d22fbe847cd132
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Sep 30 23:26:42 2017 +0200

    Add Polish help screenshots

 help/pl/figures/after-rel.png  |  Bin 0 -> 11664 bytes
 help/pl/figures/before-rel.png |  Bin 0 -> 11573 bytes
 po/pl.po                       |    6 +++---
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/help/pl/figures/after-rel.png b/help/pl/figures/after-rel.png
new file mode 100644
index 0000000..0e237ca
Binary files /dev/null and b/help/pl/figures/after-rel.png differ
diff --git a/help/pl/figures/before-rel.png b/help/pl/figures/before-rel.png
new file mode 100644
index 0000000..f3dd361
Binary files /dev/null and b/help/pl/figures/before-rel.png differ
diff --git a/po/pl.po b/po/pl.po
index d7b3882..51d1664 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -19,8 +19,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: gnome-nibbles\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2017-09-20 04:04+0200\n"
-"PO-Revision-Date: 2017-09-20 04:05+0200\n"
+"POT-Creation-Date: 2017-09-30 23:10+0200\n"
+"PO-Revision-Date: 2017-09-30 23:11+0200\n"
 "Last-Translator: Piotr Drąg <piotrdrag gmail com>\n"
 "Language-Team: Polish <community-poland mozilla org>\n"
 "Language: pl\n"
@@ -40,7 +40,7 @@ msgstr "_Preferencje"
 
 #: ../data/nibbles-menus.ui.h:2
 msgid "_Scores"
-msgstr "_Wynik"
+msgstr "_Wyniki"
 
 #: ../data/nibbles-menus.ui.h:3
 msgid "_Help"