feat(Pull Request Template): add template

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,22 @@
+# Pull Request Title
+
+## Changes
+
+- **{SUMMARY OF CHANGE}:** Describe this change further
+
+## How to test
+
+Before testing, you **must** have Node and the Node Package Manager (NPM) installed on your machine.
+
+### Initial Setup
+
+1. Clone this repository by doing `git clone https://github.com/robocin/robocin-website.git`;
+2. Install dependencies with `npm install --legacy-peer-deps`;
+3. Switch to this branch with `git checkout {THIS BRANCH}`;
+4. Do `npm run dev` to start the application locally;
+5. Go to `http://localhost:3000`.
+
+### End-to-end Tests
+
+1. Describe instructions.
+   - [ ] Add test-case.