Update pull request template with google colab support inclusion (run-llama#8525)

Author: ravi03071991

.github/pull_request_template.md

@@ -26,6 +26,7 @@ Please describe the tests that you ran to verify your changes. Provide instructi
 - [ ] I have performed a self-review of my own code
 - [ ] I have commented my code, particularly in hard-to-understand areas
 - [ ] I have made corresponding changes to the documentation
+- [ ] I have added Google Colab support for the newly added notebooks.
 - [ ] My changes generate no new warnings
 - [ ] 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