Merge pull request #1 from usecide/master

[#68126040] Initial setup for bookingsync-themes-docs
Merge pull request #2 from usecide/master

[#68175718] Add liquid markup description
Merge pull request #3 from usecide/master

[#68175718] Add filters page, reorganize layout, add introduction page.
Merge pull request #4 from usecide/master

Global variables page, add search & time variables description.
Merge pull request #5 from usecide/master

[#68530218] Add variables descriptions
Update filters description