update documentation

• https://git.open-communication.net/qaul/qaul.net -> https://git.qaul.org/qaul/qaul
• https://git.open-communication.net/qaul/\(\w*\)/blob/\w*/\(.*\) -> https://git.qaul.org/qaul/qaul/blob/develop/\1/\2
• https://git.open-communication.net/qaul/\(\w*\) -> https://git.qaul.org/qaul/qaul/blob/develop/\1
• https://qaul.net -> https://qaul.org
• https://\(\w*\).qaul.net -> https://\1.qaul.org
• qaul.net -> qaul

These services are linked but still missing:

• receiving emails @qaul.org
• docs.qaul.org
• get.qaul.org