add screenshot/screenshare block to PR template (#614)

Co-authored-by: Sachin Chaurasiya <sachinchaurasiyachotey87@gmail.com>

.github/pull_request_template.md

@@ -1,4 +1,3 @@
-
 > First thing, PLEASE READ THIS: [ReactPlay Code Review Checklist](https://github.com/reactplay/react-play/wiki/ReactPlay-Code-Review-Checklist)
 
 # Description
@@ -18,7 +17,7 @@ Please delete options that are not relevant.
 
 # How Has This Been Tested?
 
-Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. 
+Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce.
 
 # Checklist:
 
@@ -29,3 +28,9 @@ Please describe the tests that you ran to verify your changes. Provide instructi
 - [ ] I have added tests that prove my fix is effective or that my feature works
 - [ ] New and existing unit tests pass locally with my changes
 - [ ] Any dependent changes have been merged and published in downstream modules
+
+# Screenshots or example output
+
+<!--- If you made any visual changes, include screenshot. -->
+<!-- If you made any workflow changes, include a screenshare -->
+<!--- If not relevant, delete this section. -->