Update error email heading to more clearly ask for details

Author: Nateowami

src/SIL.XForge.Scripture/ClientApp/src/assets/i18n/checking_en.json

@@ -356,7 +356,7 @@
     "upcoming_maintenance": "Scripture Forge will be down for maintenance for about {{ duration }} starting at {{ startTime }}."
   },
   "issue_email": {
-    "heading": "Please explain the problem.",
+    "heading": "Please describe what you were doing when this error happened. Include:\n- What you were trying to do\n- What you expected to happen\n- What actually happened\n- Whether it happens every time, or only once",
     "technical_details": "Technical details",
     "unknown": "Unknown"
   },