add bug report issue template

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,36 @@
+---
+name: Report a bug
+about: Use this issue template to report a bug or problem with the codebase
+title: 'Bug report:'
+labels: bug
+---
+
+<!-- This issue template should be used to report a bug.
+If you are experiencing a different kind of problem working while with the codebase or OpenScPCA software tools, please make a Troubleshooting post in GitHub Discussions instead. -->
+
+#### Describe the bug
+
+<!-- Provide a clear and concise description of what the bug is. -->
+
+
+
+#### Steps to reproduce
+
+<!-- Provide all necessary information to reproduce the bug, including:
+- Steps to take and/or the exact code to run to reproduce the bug
+- Which environment you are observing the bug in (e.g., which analysis module's conda environment) -->
+
+
+
+#### Consequences of the bug
+
+<!-- Describe what the consequence(s) of this bug. For example:
+- The bug produces to a particular error message (please include the error message here)
+- The bug does not produce an error message but code does not yield the expected result
+-->
+
+
+
+#### Proposed solution (optional)
+
+<!-- _Optionally_, describe a potential solution to the bug -->