corrected private docs URL [ci skip]

README.rst

@@ -2,9 +2,9 @@
 .. Fri May  5 11:35:14 CEST 2017
 
 .. image:: http://img.shields.io/badge/docs-stable-yellow.svg
-   :target: https://www.idiap.ch/software/bob/docs/bob/bob.db.swan/stable/index.html
+   :target: http://beatubulatest.lab.idiap.ch/private/docs/bob/bob.db.swan/stable/index.html
 .. image:: http://img.shields.io/badge/docs-latest-orange.svg
-   :target: https://www.idiap.ch/software/bob/docs/bob/bob.db.swan/master/index.html
+   :target: http://beatubulatest.lab.idiap.ch/private/docs/bob/bob.db.swan/master/index.html
 .. image:: https://gitlab.idiap.ch/bob/bob.db.swan/badges/master/build.svg
    :target: https://gitlab.idiap.ch/bob/bob.db.swan/commits/master
 .. image:: https://gitlab.idiap.ch/bob/bob.db.swan/badges/master/coverage.svg