Add one-click button to run and edit the code in CodeSandbox cloud IDE (

#20)

Co-authored-by: Christoph Nakazawa <[email protected]>
GitOrigin-RevId: f97faeb530686616347c8384325c41888aef18de

README.md

@@ -16,6 +16,8 @@ If you like Athena Crisis, [please consider a sponsorship to support its develop
   <img alt="Athena Crisis Gameplay" src="https://github.com/nkzw-tech/athena-crisis/assets/13352/800717e7-fda9-4265-9e0f-25c6c99326ce">
 </a>
 
+[![Edit in CodeSandbox](https://assets.codesandbox.io/github/button-edit-lime.svg)](https://codesandbox.io/p/github/nkzw-tech/athena-crisis)
+
 ## Setup
 
 Athena Crisis requires [Node.js](https://nodejs.org/en/download/package-manager) and the latest major version of [`pnpm`](https://pnpm.io/installation).