Create 2021-06-28-Hello-World.md

Author: okaits

Diff for: _posts/2021-06-28-Hello-World.md

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+---
+layout: post
+title: Hello World!
+categories: Hello-World
+highlight: true
+image: https://static.vecteezy.com/system/resources/previews/002/362/995/original/hello-world-icon-free-vector.jpg
+author: okaits#7534
+---
+# Hello World!