[rhythmbox] Replace various HTTP by HTTPS links

[Andre Klapper <aklapper src gnome org>]

commit ac4e50f1571f7db08ab4237f39d9415ab062cc0a
Author: Andre Klapper <a9016009 gmx de>
Date:   Tue Jan 16 15:00:33 2018 +0100

    Replace various HTTP by HTTPS links

 help/C/index.docbook |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/help/C/index.docbook b/help/C/index.docbook
index 70ba718..7c253d5 100644
--- a/help/C/index.docbook
+++ b/help/C/index.docbook
@@ -713,8 +713,8 @@
     <tip>
        <para>
                You can find more information about podcasts and podcasting by visiting the
-               definition of <ulink url="http://en.wikipedia.org/wiki/Podcast";>Podcast</ulink> on the 
-               site <ulink url="http://en.wikipedia.org/";>Wikipedia</ulink>.
+               definition of <ulink url="https://en.wikipedia.org/wiki/Podcast";>Podcast</ulink> on the 
+               site <ulink url="https://en.wikipedia.org/";>Wikipedia</ulink>.
                </para>
     </tip>
     <para>
@@ -1291,7 +1291,7 @@
         <title>Last.fm profile</title>
         <para>
                        The Last.fm profile plugin collects information about the songs you listen to
-                       and sends it to the <ulink url="http://www.last.fm/";>Last.fm</ulink> website,
+                       and sends it to the <ulink url="https://www.last.fm/";>Last.fm</ulink> website,
                        building up a profile of your listening habits.  With this profile, you can:
                        <itemizedlist>
                                <listitem>
@@ -1306,7 +1306,7 @@
           <para>
                    In order to use the Last.fm profile plugin, you must have a Last.fm account.  
                        If you don't already have one, use the 
-                       <ulink url="http://www.last.fm/signup.php";>Last.fm signup page</ulink> to 
+                       <ulink url="https://www.last.fm/signup.php";>Last.fm signup page</ulink> to 
                        create one.  Enter your Last.fm account details in the <guilabel>Username</guilabel>
                        and <guilabel>Password</guilabel> fields in the Last.fm profile plugin 
                        configuration window.