Create bug.yml

.github/ISSUE_TEMPLATE/bug.yml

@@ -0,0 +1,27 @@
+name: Bug Report
+about: Report a bug with PDF.js
+body:
+  - type: input
+    id: pdf
+    attributes:
+      label: Attach (recommended) or Link to PDF file
+
+  - type: markdown
+    attributes:
+      value: "**Configuration:**"
+
+  - type: input
+    attributes: { label: Web browser and its version }
+  - type: input
+    attributes: { label: Operating system and its version }
+  - type: input
+    attributes: { label: PDF.js version }
+  - type: dropdown
+    attributes:
+      label: Is a browser extension
+      options: ["Yes", "No"]
+
+  - type: textarea
+    attributes:
+      label: Steps to reproduce the problem
+      value: "1.\n2."