Moodle for mobile

Hi,

I am studying moodle mobile app development related pieces of information on the moodle.org site. But from 06/04/2018 most of the web pages related to moodle mobile development are not showing. For example:

https://docs.moodle.org/dev/Moodle_Mobile_Customization

https://docs.moodle.org/dev/Moodle_Mobile_Plugins_Development

https://docs.moodle.org/dev/Moodle_Mobile_Themes

https://docs.moodle.org/dev/Moodle_Mobile_Developing_a_plugin_tutorial

https://docs.moodle.org/dev/Setting_up_your_development_environment_for_Moodle_Mobile_2

https://docs.moodle.org/dev/Moodle_Mobile_Remote_add-ons#Remote_add-on_publishing

I need these informations, As I am doing research related to mobile learning in Sri Lanka and currently I am studying moodle mobile app for studies in our higher education. Therefore, Please allow me to access latest moodle mobile development related information.

Thanks