add simplified template for leo badge

.github/ISSUE_TEMPLATE/badge.md

@@ -0,0 +1,21 @@
+---
+name: 🥇 Leo Contributor Badge
+about: Claiming a Leo Contributor Badge
+title: "[Badge - YOUR_GH_USERNAME]"
+labels: 'badge'
+---
+
+## 🥇 Leo Contributor Badge
+
+<!--
+Hi Aleo team! I'm claiming my contributor badge for completing a developer tutorial. 😀
+
+Github Username: <YOUR_GITHUB_USERNAME>
+Tutorial Repo: <PUSHED_GITHUB_REPO_URL>
+Requested badge: <TUTORIAL_OR_CONTENT>
+
+For badge type, if you used `leo new` or `leo example` e.g., helloworld, token, lottery, tictactoe, then enter "Tutorial" as your badge type. If you created a unique Leo application not under those examples, enter "Content" instead.
+-->
+
+(Fill in the request here.)
+