docs: https all the links \o/

Most of them already redirected to https anyway, so we might as well
avoid the redirection and the security implications by linking directly
to the right protocol.

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Brian Paul <brianp@vmware.com>

docs/repository.html

@@ -17,13 +17,13 @@
 <h1>Code Repository</h1>
 
 <p>
-Mesa uses <a href="http://git-scm.com">git</a>
+Mesa uses <a href="https://git-scm.com">git</a>
 as its source code management system.
 </p>
 
 <p>
 The master git repository is hosted on
-<a href="http://www.freedesktop.org">freedesktop.org</a>.
+<a href="https://www.freedesktop.org">freedesktop.org</a>.
 </p>
 
 <p>
@@ -35,9 +35,9 @@ You may access the repository either as an
 
 <p>
 You may also 
-<a href="http://cgit.freedesktop.org/mesa/mesa/"
+<a href="https://cgit.freedesktop.org/mesa/mesa/"
 >browse the main Mesa git repository</a> and the
-<a href="http://cgit.freedesktop.org/mesa/demos"
+<a href="https://cgit.freedesktop.org/mesa/demos"
 >Mesa demos and tests git repository</a>.
 </p>
 
@@ -73,7 +73,7 @@ follow this procedure:
 </p>
 <ol>
 <li>Subscribe to the
-<a href="http://lists.freedesktop.org/mailman/listinfo/mesa-dev">mesa-dev</a>
+<a href="https://lists.freedesktop.org/mailman/listinfo/mesa-dev">mesa-dev</a>
 mailing list.
 <li>Start contributing to the project by
 <a href="submittingpatches.html" target="_parent">submitting patches</a> to
@@ -92,7 +92,7 @@ only if they're being supervised by another Mesa developer at the same
 organization and planning to work in a limited area of the code or on a
 separate branch.
 <li>To apply for an account, follow
-<a href="http://www.freedesktop.org/wiki/AccountRequests">these directions</a>.
+<a href="https://www.freedesktop.org/wiki/AccountRequests">these directions</a>.
 It's also appreciated if you briefly describe what you intend to do (work
 on a particular driver, add a new extension, etc.) in the bugzilla record.
 </ol>
@@ -121,7 +121,7 @@ Once your account is established:
 <h2>Windows Users</h2>
 
 <p>
-If you're <a href="http://git.wiki.kernel.org/index.php/WindowsInstall">
+If you're <a href="https://git.wiki.kernel.org/index.php/WindowsInstall">
 using git on Windows</a> you'll want to enable automatic CR/LF conversion in
 your local copy of the repository:
 </p>
@@ -235,7 +235,7 @@ If you want the rebase action to be the default action, then
     git config --global branch.autosetuprebase=always
 </pre>
 <p>
-See <a href="http://www.eecs.harvard.edu/~cduan/technical/git/">Understanding Git Conceptually</a> for a fairly clear explanation about all of this.
+See <a href="https://www.eecs.harvard.edu/~cduan/technical/git/">Understanding Git Conceptually</a> for a fairly clear explanation about all of this.
 </p>
 </ol>