Requires a running QTIJS server, which can be started with start_server().
When loading the package rqti, a server is started automatically.
The preview is automatically loaded into the RStudio viewer. Alternatively
you can just open the browser in the corresponding local server which is
displayed when rendering. Since the function is supposed to be called via the
Knit-Button in RStudio, it defaults to the RStudio viewer pane.
Customize knit function in the Rmd file using the following YAML
setting after the word knit knit: rqti::render_qtijs
.