add GitHub issue template

.github/ISSUE_TEMPLATE

@@ -0,0 +1,60 @@
+name: Bug Report
+description: File a bug report
+title: "[Bug]: "
+labels: ["bug"]
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report!
+
+  - type: dropdown
+    id: os
+    attributes:
+      label: Operating System
+      description: What Operating System are you running?
+      options:
+        - Windows
+        - MacOS
+        - Linux
+    validations:
+      required: true
+
+  - type: dropdown
+    id: platform
+    attributes:
+      label: Platform
+      description: What Platform is this for?
+      options:
+        - SDL2
+        - SOKOL
+    validations:
+      required: true
+
+  - type: dropdown
+    id: renderer
+    attributes:
+      label: Renderer
+      description: What Platform is this for?
+      options:
+        - GL
+        - GLES2
+        - Software
+    validations:
+      required: true
+
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: What happened?
+      description: Please provide as much detail as possible?
+    validations:
+      required: true
+
+  - type: textarea
+    id: logs
+    attributes:
+      label: Relevant log output
+      description: Please copy and paste any relevant log output. This will be automatically formatted into code, so no need for backticks.
+      render: shell