update node requirement to 16

README.md

@@ -24,7 +24,7 @@ Click or tab: Place Pixel
 
 ## Build
 ### Requirements
-- [nodejs environment](https://nodejs.org/en/)
+- [nodejs environment](https://nodejs.org/en/) (>=16)
 - Linux or WSL if you want to be safe (we do not build on Windows and therefor can't guarantee that it will work there)
 
 ### Building
@@ -57,7 +57,7 @@ git config --global url.https://github.com/.insteadOf git://github.com/
 
 ## Run
 ### Requirements
-- nodejs environment with [npm](https://www.npmjs.com/get-npm)
+- nodejs environment with [npm](https://www.npmjs.com/get-npm) (>=16)
 - [pm2](https://github.com/Unitech/pm2) (`npm install -g pm2`) as process manager and for logging
 - [redis](https://redis.io/) as database for storìng the canvas
 - mysql or mariadb ([setup own user](https://www.digitalocean.com/community/tutorials/how-to-create-a-new-user-and-grant-permissions-in-mysql) and [create database](https://www.w3schools.com/SQl/sql_create_db.asp) for pixelplanet) for storing additional data like IP blacklist

package.json

@@ -3,7 +3,7 @@
   "version": "1.0.0",
   "private": true,
   "engines": {
-    "node": ">=14"
+    "node": ">=16"
   },
   "description": "Unlimited planet canvas for placing pixels",
   "main": "server.js",