Update links to the new documentation website

.github/ISSUE_TEMPLATE/feature_request.md

@@ -7,5 +7,7 @@ assignees: ''
 
 ---
 
-- [ ] I understand that Kanboard is in maintenance mode. It doesn't mean it's abandoned, but there is no significant feature development.
-- [ ] I have read this document: https://docs.kanboard.org/en/latest/developer_guide/faq.html#why-are-you-not-developing-my-feature-request
+<!--
+I understand that Kanboard is in maintenance mode.
+It doesn't mean it's abandoned, but there is no significant feature development.
+-->

.github/ISSUE_TEMPLATE/question---discussion.md

@@ -10,5 +10,3 @@ assignees: ''
 Don't use the bug tracker!
 
 Go to the forum -> https://kanboard.discourse.group/
-
-https://docs.kanboard.org/en/latest/developer_guide/faq.html#why-did-you-close-my-question-on-the-bug-tracker

.github/pull_request_template.md

@@ -3,5 +3,6 @@ Do you follow the guidelines?
 - [ ] I have tested my changes
 - [ ] There is no breaking change
 - [ ] There is no regression
-- [ ] I follow existing [coding style](https://docs.kanboard.org/en/latest/developer_guide/coding_standards.html)
+- [ ] I have updated the unit tests and integration tests accordingly
+- [ ] I follow the existing [coding style](https://docs.kanboard.org/v1/dev/coding_standards/)