fix(query-documentation): typo range query

[idrissneumann]

Description

Fix a typo in this documentation: https://quickwit.io/docs/get-started/query-language-intro

duration:[0 TO 1000] instead of duration:[0 TO 1000}

[guilload]

That's not necessarily a typo: [ is for inclusive, { is for exclusive. It'd be better to leave the examples as is and enhance the description.