Update issue templates (#2272)

Author: ashwinraghav

.github/ISSUE_TEMPLATE/bug.md

@@ -9,6 +9,7 @@ template_path=.github/ISSUE_TEMPLATE/bug.md
 -->
 
 ### [READ] Step 1: Are you in the right place?
+**Thank you for submitting your issue. We are operating at reduced capacity from Dec 18 2020 to Jan 4 2021. Please expect delayed responses. For more urgent requests please reach us via our support channels https://firebase.google.com/support**
 
 Issues filed here should be about bugs in __the code in this repository__. 
 If you have a general question, need help debugging, or fall into some
@@ -39,4 +40,4 @@ This could be a description, log/console output, etc.
 
 ```
 // TODO(you): code here to reproduce the problem
-```
+```