Fill in placeholder information for indi-celestron-origin

[jrrk2]

This information begins the documentation of the indi-celestron-origin driver in indi-3rdparty

[s-pouya-sh]

Thanks for your contribution,
As the driver belongs to cameras and mounts, you don't need to duplicate the files; instead, use both categories as an array in the categories section of the md, yaml files as described in the README.
The image size is too big(940x880), it is recommended to be 300x300