Broken link in Filesystems-guide

[Ironwally]

The link to data migration at the very bottom of Filesystems Guide is broken,

It is currently: https://github.com/zilexa/Homeserver/blob/master/filesystem/data-migration.md

And probably should be (used in the README.md): https://github.com/zilexa/Homeserver/blob/master/Filesystems-guide/Data-Migration.md

[Ironwally]

Additionaly: Thanks for this awesome guide! I has motivated me to setup my own server! :)