GitHub new issue templates and PR template update.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,36 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: "[BUG] "
+labels: ["bug", "triage"]
+assignees: ''
+
+---
+
+## Describe the bug
+
+<!--A clear and concise description of what the bug is.-->
+
+## Version, Tool-chain, Operating System
+
+Use `ssmtp -V` and `gcc -v`
+
+```
+<!--Replace with output of commands-->
+```
+
+## Steps to reproduce
+
+<!--Exact steps in sequential order to trigger the bug.-->
+
+## Expected behavior
+
+<!--A clear and concise description of what you expected to happen.-->
+
+## Actual behaviour
+
+<!--A clear and concise description of what actually happens.-->
+
+## Screenshots/Logs
+
+<!--If applicable, add screenshots to help explain your problem.-->

.github/ISSUE_TEMPLATE/config.yml

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+# check https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/configuring-issue-templates-for-your-repository#configuring-the-template-chooser
+
+blank_issues_enabled: false

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: "[ENH] "
+labels: ["enhancement", "triage"]
+assignees: ''
+
+---
+
+## Is your feature request related to a problem?
+
+<!--A clear and concise description of what the problem is. Ex. Improve TLS read/write.-->
+
+## Version, Tool-chain, Operating System
+
+Use `ssmtp -V` and `gcc -v`
+
+```
+<!--Replace with output of commands-->
+```
+
+## Describe the solution you'd like
+
+<!--A clear and concise description of what you want to happen.-->
+
+## Steps to reproduce (if applicable)
+
+<!--Steps to reproduce the current behavior or proposed steps to implement.-->
+
+## Expected behavior (if applicable)
+
+<!--A clear and concise description of what you expected to happen.-->
+
+## Actual behaviour (if applicable)
+
+<!--A clear and concise description of what actually happens.-->
+
+## Describe alternatives you've considered
+
+<!--A clear and concise description of any alternative solutions or features you've considered.-->
+
+## Additional context
+
+<!--Add any other context or screenshots to help explain your feature.-->

.github/ISSUE_TEMPLATE/support.md

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+---
+name: Question or support request
+about: You're puzzled or something doesn't work as expected
+title: "[?] "
+labels: ["support", "triage"]
+assignees: ''
+
+---
+
+## What is the issue?
+
+<!--A clear and concise description of what you need help with.-->
+
+## Version, Tool-chain, Operating System
+
+Use `ssmtp -V` and `gcc -v`
+
+```
+<!--Replace with output of commands-->
+```
+
+## Steps you have already tried
+
+<!--Describe any troubleshooting steps you've already taken.-->
+
+## Additional context
+
+<!--Add any other context or screenshots to help explain your feature.-->

.github/pull_request_template.md

@@ -1,5 +1,5 @@
 ## Description
-<!-- Briefly describe the change and its purpose -->
+<!-- Briefly describe the change and its purpose. If the change does not relates to a Github issue please provide step to reproduce the issue which PR fixes if required. -->
 
 ## Related Ticket
 <!-- Link to GitHub issue (e.g., Fixes #123) -->