improve issue template. (#3411)

* improve issue template.
* add api documentation
* add MCVE guide
* enhance bug report template
* apply feedback

Signed-off-by: Outsider <outsideris@gmail.com>

Author: outsideris

.github/ISSUE_TEMPLATE.md .github/ISSUE_TEMPLATE/bug_report.md

@@ -1,6 +1,16 @@
+---
+name: Bug report
+about: To report a part of mocha not working as expected
+title: ''
+labels: 'unconfirmed-bug'
+---
+
 <!--
 Have you read Mocha's Code of Conduct? By filing an Issue, you are expected to comply with it, including treating everyone with respect: https://github.com/mochajs/mocha/blob/master/.github/CODE_OF_CONDUCT.md
 For more, check out the Mocha Gitter chat room: https://gitter.im/mochajs/mocha
+
+Detail the steps necessary to reproduce the problem. To get the fastest support, create an MCVE and upload it to GitHub.
+create an [MCVE](https://stackoverflow.com/help/mcve) and upload it to GitHub.
 -->
 
 ### Prerequisites
@@ -12,7 +22,7 @@ Place an `x` between the square brackets on the lines below for every satisfied
 - [ ] Checked that your issue hasn't already been filed by cross-referencing [issues with the `faq` label](https://github.com/mochajs/mocha/issues?utf8=%E2%9C%93&q=is%3Aissue%20label%3Afaq%20)
 - [ ] Checked next-gen ES issues and syntax problems by using the same environment and/or transpiler configuration without Mocha to ensure it isn't just a feature that actually isn't supported in the environment in question or a bug in your code.
 - [ ] 'Smoke tested' the code to be tested by running it outside the real test suite to get a better sense of whether the problem is in the code under test, your usage of Mocha, or Mocha itself
-- [ ] Ensured that there is no discrepancy between the locally and globally installed versions of Mocha. You can find them with: `node node_modules/.bin/mocha --version`(Local) and `mocha --version`(Global). We recommend avoiding the use of globally installed Mocha.
+- [ ] Ensured that there is no discrepancy between the locally and globally installed versions of Mocha. You can find them with: `node node_modules/.bin/mocha --version`(Local) and `mocha --version`(Global). We recommend that you _not_ install Mocha globally.
 
 ### Description
 
@@ -30,6 +40,10 @@ on how to create a minimal, complete, and verifiable example.
 **Expected behavior:** [What you expect to happen]
 
 **Actual behavior:** [What actually happens]
+<!--
+Please include any output, especially error messages (including stacktrace). Remember, we can't see your screen.
+Scrub if needed so as not to reveal passwords, etc.
+-->
 
 **Reproduces how often:** [What percentage of the time does it reproduce?]
 
@@ -39,11 +53,13 @@ on how to create a minimal, complete, and verifiable example.
 
 - The output of `mocha --version` and `node node_modules/.bin/mocha --version`:
 - The output of `node --version`:
-- The version and architecture of your operating system:
-- Your shell (bash, zsh, PowerShell, cmd, etc.):
+- Your operating system
+  - name and version:
+  - architecture (32 or 64-bit):
+- Your shell (e.g., bash, zsh, PowerShell, cmd):
 - Your browser and version (if running browser tests):
-- Any other third party Mocha related modules (with versions):
-- The code transpiler being used:
+- Any third-party Mocha-related modules (and their versions):
+- Any code transpiler (e.g., TypeScript, CoffeeScript, Babel) being used (and its version):
 
 ### Additional Information
 

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,18 @@
+---
+name: Feature request
+about: Suggest an idea for Mocha
+title: ''
+labels: 'feature'
+---
+
+**Is your feature request related to a problem or a nice-to-have?? Please describe.**
+A clear and concise description of what the problem is. E.g. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**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 about the feature request here.

.github/ISSUE_TEMPLATE/support-question.md

@@ -0,0 +1,15 @@
+---
+name: Support Question
+about: If you have a question, please check out our Gitter or StackOverflow!
+title: ''
+labels: 'question'
+---
+
+<!--
+We primarily use GitHub as an issue tracker; for usage and support questions, please check out these resources below. Thanks!.
+
+* Website: https://mochajs.org/
+* Chat room: http://gitter.im/mochajs/mocha
+* StackOverflow: https://stackoverflow.com/questions/tagged/mocha using the tag `mocha`
+* API documentation: https://mochajs.org/api/
+-->