Update bug_report.yml

Author: gkjohnson

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -48,15 +48,15 @@ body:
     id: version
     attributes:
       label: Library Version
-      description: What version of the library are you using?
+      description: Which version of the library are you using?
       placeholder: v
     validations:
       required: true
   - type: input
     id: three_version
     attributes:
       label: Three.js Version
-      description: What version of three.js are you using?
+      description: Which version of three.js are you using?
       placeholder: r
     validations:
       required: true