updating pul request template (#242)

* updating pul request template

* fixing typos

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,21 +1,36 @@
 <!---
     Thank you for contributing to Aqua Security.
-    Fields marked with (*) are required. Please don't remove the template.
+    Please don't remove the template.
 -->
 
-## Description (*)
-<!---
-   Please provide a brief description of this PR.
--->
-## Fixed Issues (if necessary)
-<!---
-    Please mention all the relevant issues this PR fixes.
--->
-## Screenshots (if necessary)
-<!---
-  Provide relevant screenshots for the error fixed or the feature introduced. You can upload JPEGs, PNGs, or GIFs.
--->
-## Contribution checklist (*)
- - [ ] I have read the Contributing Guidelines
- - [ ] Commits have been made with meaningful commit messages
- - [ ] All automated tests have passed successfully 
+## Description
+Please include a summary of the change and which issue is fixed. Also include relevant motivation and context. List any dependencies that are required for this change.
+
+## Contribution Guidelines
+Please Read through the [Contribution Guidelines](https://github.com/aquasecurity/kube-hunter/blob/master/CONTRIBUTING.md).
+
+## Fixed Issues
+
+Please mention any issues fixed in the PR by referencing it properly in the commit message.
+As per the convention, use appropriate keywords such as `fixes`, `closes`, `resolves` to automatically refer the issue.
+Please consult [official github documentation](https://help.github.com/en/github/managing-your-work-on-github/closing-issues-using-keywords) for details.
+
+Fixes #(issue)
+
+## "BEFORE" and "AFTER" output
+
+To verify that the change works as desired, please include an output of terminal before and after the changes under headings "BEFORE" and "AFTER".
+
+### BEFORE
+Any Terminal Output Before Changes.
+
+### AFTER
+Any Terminal Output Before Changes.
+
+## Contribution checklist
+ - [ ] I have read the Contributing Guidelines.
+ - [ ] The commits refer to an active issue in the repository.
+ - [ ] I have added automated testing to cover this case.
+ 
+## Notes
+Please mention if you have not checked any of the above boxes.