writing to STORAGE_TYPES$GOOGLE_SHEETS works with non empty googlesheet

writing to STORAGE_TYPES$GOOGLE_SHEETS works fine, but only with a google sheet already filled with a header-row and at least one more row. Otherwise I get an error

_all(lengths == 1L | lengths == n) is not TRUE_

from the function call of gs_add_row() as explained in its documentation.

so probably it would be a good thing to indicate the usage of googlesheets is also supported by your package with the current limitations of the googlesheets package.