htmlTemplate option in .redocly.yaml file is ignored when using "preview-docs"

[Bahus]

Hi, when trying to insert some images into rendered preview I found out that htmlTemlate parameter can't be passed nether through .redocly.yaml nor command line parameters:

https://github.com/Redocly/openapi-cli/blob/989d6e3b6ccbba2d6779e544abc1780cc6df14ad/src/cli/index.js#L223-L229

( htmlTemplate parameter is never passed to startPreviewServer call )

Thus when I insert image link into a description, preview server tries to find it inside node_modules/@redocly/openapi-cli/dist/preview-docs/ instead of a folder where my custom html template is located.

My question is: what is a correct way to insert images into locally rendered preview? Thank you.