apply documentation for app

documentation/README.md

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+<div align="center"> 
+  <img src="https://user-images.githubusercontent.com/67900234/205422369-4ee51a5a-1822-4da2-bd21-055cd0b40230.svg" width="600" >
+</div>
+
+<br />
+
+## 1. How to installation?
+
+Create apps with no build configuration.<br />
+If something doesn't work, [file an issue](https://github.com/grindytech/gafi/issues).<br />
+to run you just start the command below
+
+```sh
+git clone -b dev https://github.com/grindytech/gafi-app.git
+cd gafi-app
+yarn install
+yarn dev
+```
+
+<div> 
+  <img src="https://drive.google.com/uc?export=view&id=104-mZ_hZ8KSoA6Z7uf5daWG3kjtp0t1G" />
+</div>
+
+## 2. How to use?
+
+If you wish to explore the application in detail, please connect a wallet, such as
+[Polkadot](https://polkadot.js.org/extension/),
+[Clover](https://docs.clv.org/use-clv-wallet/download-clv-wallet),
+or [Subwallet](https://www.subwallet.app/download.html)<br />
+As a guest you can only preview the application interaction with the app's features is not available.<br />
+To learn more, please refer to our [documentation](https://wiki.gafi.network/learn/web3-gaming).<br />
+
+The following is a guide to using the application:
+
+## 3. How to test
+
+Before deployment, crucial applications must pass unit testing to ensure functionality <br />
+and prevent bugs. also ensuring user satisfaction. <br />
+To better understand unit testing techniques for resolving [issues](https://jestjs.io/docs/getting-started)
+
+```sh
+git clone -b dev https://github.com/grindytech/gafi-app.git
+cd gafi-app
+yarn install
+yarn test
+```
+
+<div> 
+  <img src="https://drive.google.com/uc?export=view&id=1E1Y3sF2l4cut36CqxAD0kNYcJiVJLgrS" />
+  <img src="https://drive.google.com/uc?export=view&id=1_YXP9x84Psie_BreOs5h0jd6rZV0HgKz" width="100%" />
+</div>