Update README with regard to "mirror"

[blueyed]

I was about to suggest the following patch, but then noticed that GitHub appears to be used now instead?

diff --git i/README.rst w/README.rst
index 4892bf8..e51fa1d 100644
--- i/README.rst
+++ w/README.rst
@@ -64,8 +64,8 @@ Development Version
 You may obtain the development version using the `Git <http://git-scm.org/>`_
 version control tool.::

-    git clone http://git.tiker.net/trees/pudb.git
+    git clone https://git.tiker.net/trees/pudb.git

-You may also `browse the code <http://git.tiker.net/pudb.git>`_ online.
+You may also `browse the code <https://git.tiker.net/pudb.git>`_ online.

 The repository is also mirrored at `GitHub <https://github.com/inducer/pudb>`_.

Please update the README in that regard.

[inducer]

Thanks for pointing this out!