DOC: Add 'Question.md' issue template, discouraging asking questions

This commit adds a new `Question.md` issue template that aims to prevent
users asking questions within the issue tracker, because the other two
templates do not fit "question", thus leading to people not seeing that
the issue tracker is not for questions.

This template inspired by TypeScript's Question template at:
https://github.com/microsoft/TypeScript/blob/master/.github/ISSUE_TEMPLATE/Question.md

diff --git a/.github/ISSUE_TEMPLATE/Question.md b/.github/ISSUE_TEMPLATE/Question.md
new file mode 100644 (file)
index 0000000..99b93e6
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/Question.md
@@ -0,0 +1,19 @@
+---
+name: Question
+about: Do NOT ask questions in the issue tracker. This issue tracker is for tracking bugs and feature requests directly relating to the development of the software itself.
+labels: 'status: invalid'
+---
+
+# :stop_sign: HOLD ON :stop_sign:
+
+Do **NOT** ask questions in the issue tracker. This issue tracker is for tracking bugs and
+feature requests directly relating to the development of the software itself.
+ 
+Use the forum or the mailing list if you have a question rather than a bug or feature request.
+ 
+The forum is at: https://discourse.haproxy.org/
+ 
+- The mailing list (no need to subscribe) is: haproxy@formilux.org
+- Subscribe to the list: haproxy+subscribe@formilux.org
+- Unsubscribe from the list: haproxy+unsubscribe@formilux.org
+