use npm

Author: tolya-yanot

README.md

@@ -6,22 +6,17 @@ Developed by [RSquad](https://rsquad.io/) by order of TON Foundation.
 
 ## Project setup
 ```
-yarn install
+npm install
 ```
 
 ### Compiles and hot-reloads for development
 ```
-yarn serve
+npm run serve
 ```
 
 ### Compiles and minifies for production
 ```
-yarn build
-```
-
-### Lints and fixes files
-```
-yarn lint
+npm run build
 ```
 
 ### Customize configuration