updated the readme file

readme.md

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+
+# Komoju Payment Gateway SDK for React Native
+
+**Welcome to the Komoju Payment Gateway SDK!** This SDK empowers you to seamlessly integrate secure payment processing into your React Native applications using the powerful Typescript language.
+
+- *This will guide you to setup the sdk on local environment. In near future you will be able to install it from the npm registry.*
+
+## Getting Started
+First needs to set up the React Native on local environment.
+[React Native Offical Guide](https://reactnative.dev/docs/environment-setup)
+
+
+
+
+## Run Locally
+
+Clone the project
+
+```bash
+  git clone https://github.com/degica/mobile-sdk_react-native.git
+```
+
+Go to the project directory
+
+```bash
+  cd mobile-sdk_react-native
+```
+
+Install dependencies on SDK
+
+```bash
+  cd payment_sdk 
+  yarn install
+```
+
+Install dependencies on Example App
+
+```bash
+  cd example 
+  yarn install
+```
+
+Adding the evironmental variables on the example app
+
+```bash
+  cd example
+  touch .env
+```
+
+There are two environment variables need to add to the .env
+- *SECRET_KEY=<key should get from the komoju dashboard>*
+- *PUBLIC_KEY=<key should get from the komoju dashboard>*
+
+Start the Example App
+
+Based on the platform
+use either 
+```bash
+  cd example
+  yarn android
+```
+on android 
+or 
+```bash
+  cd example
+  yarn ios
+```
+on the IOS.