chore: update PR_template.md

Author: borgesis95

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,20 +1,16 @@
-## Issue
+## 🔗 Issue
 
-Put here JIRA ticket reference
+Put here Jira ticket
 
-## Description / Context / Why
+## 📝 Description / Context
 
 Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context.
 
-## Short description
-
-Include a summary of the changes.
-
-## List of changes proposed in this pull request
+## 🛠 List of changes
 
 - Feature A
 - Feature B
 
-## How to test
+## 🧪 How to test
 
 Describe the tests that you ran to verify your changes. Provide instructions so we can reproduce.