initial issue template

ISSUE_TEMPLATE.md

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+## IMPORTANT :hand: :point_up: Please read
+
+Only use github issues for bugs.
+
+We will be more than happy to help you on the community forum for:
+- feature requests: https://community.passbolt.com/c/backlog
+- issues related to installations: https://community.passbolt.com/c/installation-issues
+- general questions: https://community.passbolt.com/c/uncategorized
+
+If you still want to report a bug please take a look first on the other open/closed tickets to avoid duplicating issues.
+
+### How to provide a good issue report:
+- Provide all the information you can collect about your problem
+- Provide log outputs from (some examples follow):
+  - /var/www/passbolt/tmp/logs/error.log
+  - /var/log/nginx/error.log
+  - curl -vvvLk http://passboltdomain
+  - Any other sources you might think will help to solve the problem
+
+### What you did :memo:
+Explain what you did, steps to reproduce your issue, here.
+
+### What happened :collision: :clipboard:
+Provide information such as log outputs in this section showing what is
+happening.
+
+### What you expected to happen
+Explain what is the expected behaviour.