MySQL documentation command snippets has to be fixed

[Maksym Mikheienko]

Page https://help.ubuntu.com/lts/serverguide/mysql.html
Section 'Advanced configuration'
Paragraph 'Then delete and re-initialise the database space and make sure ownership is correct before restarting MySQL:'

Current terminal command snippet:
sudo rm -rf /var/lib/mysql/*
sudo mysql_install_db
sudo chown -R mysql: /var/lib/mysql
sudo service start mysql

Last line has to be changed to
sudo service mysql start