Update PULL_REQUEST_TEMPLATE.md

Author: zafarella

PULL_REQUEST_TEMPLATE.md

@@ -1,9 +1,15 @@
-### What this PR do?
-- Describes the main changes that come with the pull request in present tense
-- For instance - "Add correction to facade pattern"
 
-### Context
-- 
+Pull request title
 
+- Clearly and concisely describes what it does
+- Refer to the issue that it solves, if available
 
-> DELETE ME|  for detailed contributing instructions see https://github.com/iluwatar/java-design-patterns/wiki/01.-How-to-contribute
+
+Pull request description
+
+- Describes the main changes that come with the pull request
+- Any relevant additional information is provided
+
+
+
+> For detailed contributing instructions see https://github.com/iluwatar/java-design-patterns/wiki/01.-How-to-contribute