Create PULL_REQUEST_TEMPLATE.md

Author: Rishit-dagli

.github/PULL_REQUEST_TEMPLATE.md

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+## :camera: Screenshots
+<!-- Show us what you've changed, we love images. -->
+
+## :page_facing_up: Context
+<!-- Why did you change something? Is there an [issue](https://github.com/Rishit-dagli/ML-with-Android-11/issues) to link here? Or an external link? -->
+
+## :pencil: Changes
+<!-- Which code did you change? How? -->
+
+## :paperclip: Related PR
+<!-- PR that blocks this one, or the ones blocked by this PR -->
+
+## :no_entry_sign: Breaking
+<!-- Is there something breaking the package?-->
+
+## :stopwatch: Next steps
+<!-- Do we have to plan something else after the merge? -->