Convert issue template to new Github format (#519)

* Convert issue template to new Github format

the old format seems to be dropped altogether now

[no ci]

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,17 +1,30 @@
-Too many issues will kill our team's development velocity, drastically.
-Make sure you have checked all steps below.
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
 
 ### Prerequisite
-* [ ] Make sure your problem is not listed in [the common build problems](https://github.com/pyenv/pyenv/wiki/Common-build-problems).
 * [ ] Make sure no duplicated issue has already been reported in [the pyenv-virtualenv issues](https://github.com/pyenv/pyenv-virtualenv/issues). You should look in closed issues, too.
-* [ ] Make sure you are not asking us to help solving your specific issue.
-  * GitHub issues is opened mainly for development purposes. If you want to ask someone to help solving your problem, go to some community site like [Gitter](https://gitter.im/yyuu/pyenv), [StackOverflow](https://stackoverflow.com/questions/tagged/pyenv), etc.
+* [ ] Make sure you are reporting a problem in Pyenv-Virtualenv and not seeking consultation with Pyenv-Virtualenv use.
+  * GitHub issues are intended mainly for Pyenv-Virtualenv development purposes. If you are seeking help with Pyenv-Virtualenv use, check [Pyenv-Virtualenv documentation](https://github.com/pyenv/pyenv-virtualenv?tab=readme-ov-file#usage), go to a user community site like [Gitter](https://gitter.im/yyuu/pyenv), [StackOverflow](https://stackoverflow.com/questions/tagged/pyenv), etc, or to [Discussions](https://github.com/orgs/pyenv/discussions).
 * [ ] Make sure your problem is not derived from packaging (e.g. [Homebrew](https://brew.sh)).
   * Please refer to the package documentation for the installation issues, etc.
 * [ ] Make sure your problem is not derived from other plugins.
   * This repository is maintaining the `pyenv-virtualenv` plugin only. Please refrain from reporting issues of other plugins here.
 
-### Description
+### Describe the bug
+A clear and concise description of what the bug is.
+Do specify what the expected behaviour is if that's not obvious from the bug's nature.
+
+#### Reproduction steps
+Listing the commands to run in a new console session and their output is usually sufficient.
+Please use a Markdown code block (three backticks on a line by themselves before and after the text) to denote a console output excerpt.
+
+#### Diagnostic details
 - [ ] Platform information (e.g. Ubuntu Linux 20.04):
 - [ ] OS architecture (e.g. amd64):
 - [ ] pyenv version:
@@ -21,7 +34,7 @@ Make sure you have checked all steps below.
 - [ ] Please attach the debug log of a faulty Pyenv invocation as a gist
   * If the problem happens in a Pyenv invocation, you can turn on debug logging by setting `PYENV_DEBUG=1`, e.g. `env PYENV_DEBUG=1 pyenv install -v 3.6.4`
   * If the problem happens outside of a Pyenv invocation, get the debug log like this:
-     ```
+     ```bash
      # for Bash
      export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
      # for Zsh

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,24 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the intended use case**
+* What your general environment is if it's relevant to the feature request and is not a generic console with a typical Pyenv installation (CI, server with a custom setup, cloud environment, IDE)
+* What you are trying to achieve
+* What specifically you are doing for that regarding Pyenv
+* Where you are stuck
+
+**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.
+[ ] In particular, did you consider [writing a plugin](https://github.com/pyenv/pyenv/blob/master/README.md#pyenv-plugins)? Note that if your plugin has general applicability, you can publish it in the 3rd-party plugin catalog on the Pyenv Wiki as per the link above.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.