Change in sidebar to accommodate the i18n tutorial

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
Screenshots for the i18n tutorial

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
Sample extension for the i18n tutorial

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
i18n Tutorial

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
Merge pull request #41 from shwetank/master

i18n tutorial files