Fix #1693: writing GitHub issue and pull request templates (#1703)

* Fix #1693: writing GitHub issue and pull request templates

* Create feature_request.md

* Update bug_report.md

* Update feature_request.md

Co-authored-by: Hamish Mackenzie <Hamish.K.Mackenzie@gmail.com>

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,32 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+This template is a guide only, feel free add or omit sections as appropriate.
+
+**Describe the bug**
+
+A clear and concise description of what the bug is, including:
+
+* Build system (eg. `x86_64-linux` or `aarch64-darwin`).
+* GHC version.
+* Haskell.nix version (or commit) used.
+
+**Steps To Reproduce**
+
+Steps for reproducing (try to minimise the size of the code base if possible).
+
+Bonus points if it is in a PR to add a test case.
+
+**Expected behavior**
+
+A clear and concise description of what you expected to happen.
+
+**Additional context**
+
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,22 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+This template is a guide only, feel free add or omit sections as appropriate.
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. 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.