Update README.md

Author: San103

README.md

@@ -1,7 +1,8 @@
 Income and Expense Tracker with Predictions using React-Native Framework and SQlite
 
--npm i
--npx expo start
+### Development Installation 👋
+- npm i or npm install
+- npx expo start
 
 Application Screenshots 
 ![Sample](https://user-images.githubusercontent.com/106059541/191643446-8a7d4a90-90bf-4546-be2d-aee279adc216.jpg)