Updating node standard version

If you can't commit your code and get a message to update your Node version, follow the steps below:
- nvm list - to see the version you have and the available version you can install
- nvm install 8.12.0 - to install the 8.12.0 version
- nvm alias default 8.12.0 - to set 8.12.0 as the Node default
- npm install - to install the version
You are now updated!