Use node:14.15.1-alpine as base image

Dockerfile

-FROM node:10.15.3-alpine
+FROM node:14.15.1-alpine
 ARG API_URL
 
 # Create app directory

README.md

@@ -31,7 +31,7 @@ provided below, fork this repository, and start developing from there.
 
 ## Requirements
 
-* [Node.js® – a JavaScript runtime built on Chrome's V8 JavaScript engine.](https://nodejs.org/en/) (versions 10.15.3 - 14.15.0)
+* [Node.js® – a JavaScript runtime built on Chrome's V8 JavaScript engine.](https://nodejs.org/en/) (versions 10.15.3 - 14.15.1)
 
 * [Nodemon – monitor for any changes in your source and automatically restart your server](https://nodemon.io/)