Documentation: More variable examples

[mlibbey]

I've been trying to figure out how to use a variable when quoting is needed for instance, if the query has something like
where date >= ('2022-12-01')
and I set a variable start to be 2022-12-01
and tried things like
where date >= ($start)
where date >= ('$start')
where date >= ("$start")
where date >= ('$start')
where date >= ('$start')

Eventually realized that the variable should have the quoting inside it: start '2022-12-01'

Guess my suggestion would be on
https://tabix.io/doc/Tips/#variables
to say
If you want your variable to be inside quotes in the query, please include the quotes in the variable. For instance,
setting the start variable to '2022-12-01' and using it in the query like
where date >= ($start)
will result in where date >= ('2022-12-01') being sent to the server.