WIP / sample github bug report for OMPI

Signed-off-by: Jeff Squyres <[email protected]>

Author: jsquyres

.github/ISSUE_TEMPLATE/bug-report.yml

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+name: Bug report
+description: Something is not working correctly.
+labels: "bug"
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for taking the time to submit an issue!
+
+        ## Background information
+
+  - type: input
+    attributes:
+      label: What version of Open MPI are you using?
+      description: |
+        Examples: v4.1.2, v4.0.1, git branch name and hash, etc.
+    validations:
+      required: true
+
+  - type: input
+    attributes:
+      label: How was Open MPI installed?
+      description: |
+        Examples: from a source/distribution tarball, from a git clone, from an operating system distribution package, etc.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: If building from a git clone
+      description: |
+        Copy-n-paste the output from `git submodule status`.
+      placeholder: |
+        ```
+        $ git submodule status
+         5bd97056ccd994c711fde4ac19aded8e4eac8285 3rd-party/openpmix (v1.1.3-3726-g5bd97056)
+         e0076a116884c9a8bcd5fffe20be84f3564446c3 3rd-party/prrte (psrvr-v2.0.0rc1-4537-ge0076a1168)
+         237ceff1a8ed996d855d69f372be9aaea44919ea config/oac (remotes/origin/HEAD)
+        ```
+
+  - type: input
+    attributes:
+      label: Operating system/version
+      placeholder: ex. Ubuntu 22.04
+
+  - type: input
+    attributes:
+      label: Computer hardware
+      placeholder: ex. 2xIntel core i7-1365, 32 GB RAM, 2xA100 NVIDIA GPUs
+
+  - type: input
+    attributes:
+      label: Network type
+      placeholder: ex. Ethernet/TCP, Ethernet/RoCE, InfiniBand, etc.
+
+  - type: markdown
+    attributes:
+      value: |
+        ## Details of the problem
+
+  - type: textarea
+    attributes:
+      label: Details
+      description: |
+        Please describe, **in detail**, the problem that you are having, including the behavior you expect to see, the actual behavior that you are seeing, steps to reproduce the problem, etc.  It is most helpful if you can attach a small program that a developer can use to reproduce your problem.
+      placeholder: |
+        If you include verbatim output (or a code block), please use a GitHub Markdown block like this:
+        ```c
+        #include <mpi.h>
+        int main() {
+            // Short program that reproduces the problem
+        }
+        ```
+    validations:
+      required: true