Document how to create compliant Matomo scripts

[NeuroShepherd]

When adding a new site, we want to adjust the tracking code such that the “Disable all tracking cookies” option is selected.

Moreover, we have set up our server to have the additional privacy and anonymization settings for all new websites:

• IP addresses anonymized to two bytes e.g. 192.255.XXX.XXX
• Force tracking without cookies: "Enabling this option will automatically update matomo.js, so it contains some additional code to ensure all trackers won't use cookies. Additionally Matomo will ignore all tracking cookies on server side. "
• Anonymized IP addresses when enriching visits: "Plugins such as Geo Location via IP and Provider improve visitor's metadata. By default, these plugins use the anonymized IP addresses. If you select 'No', then the non-anonymized full IP address will be used instead, resulting in less privacy but better data accuracy."