[perl-Gtk3] Docs: fix typo

[Torsten Schönfeld <tsch src gnome org>]

commit 841736f9145a7bb6429d3fcfb192d12641d04060
Author: gregor herrmann <gregoa debian org>
Date:   Tue Sep 20 14:46:11 2016 +0200

    Docs: fix typo

 lib/Gtk3.pm |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/Gtk3.pm b/lib/Gtk3.pm
index 0ba8610..bd3eeec 100644
--- a/lib/Gtk3.pm
+++ b/lib/Gtk3.pm
@@ -970,7 +970,7 @@ sub Gtk3::CssProvider::load_from_data {
     $self, _unpack_unless_array_ref ($data));
 }
 
-=item * For Gtk3::Dialog and Gtk3::InfoBar, a Perl implementaion of
+=item * For Gtk3::Dialog and Gtk3::InfoBar, a Perl implementation of
 C<add_buttons> is provided.
 
 =cut