Added a line to separate the description

Co-authored-by: Evgeny Aleksandrov <[email protected]>

Author: kidinov

.github/PULL_REQUEST_TEMPLATE.md

@@ -13,6 +13,7 @@ Closes: #
 <!-- Include before and after images or gifs when appropriate. -->
 
 
+---
 - [ ] I have considered if this change warrants user-facing release notes and have added them to `RELEASE-NOTES.txt` if necessary.
 
 <!-- Pull request guidelines: https://github.com/woocommerce/woocommerce-android/blob/develop/docs/pull-request-guidelines.md -->