anchor.diff:  
   === Prepare database
   
  +For production use of WebAnno, it is highly recommended to use a MySQL database. In this section,
  +we briefly describe how to install a MySQL server and how to prepare it for use with WebAnno.
  +
   * Install MySQL
   +
   [source,bash]
  
positive.code: ----
  $ service apache2 restart
  ----
  
negative.code: === Prerequisites
  
  * This guide assumes Debian 9.1 (Stretch). It may also work on Ubuntu with some modifications, but we do not test this. Instructions for other Linux distributions likely deviate significantly.
  * It is further assumed that the user "www-data" already exists on the system and that it shall be used to run WebAnno.
  * All commands assume that you are logged in as the *root* user. 
  
  NOTE: If you cannot log in as root but have to use `sudo` to become root, then the recommended way to do that is using the command `sudo su -`.
  