The table had in two rows an additional column. It was breaking the markdown formatting. The unused column has been removed and the table is displayed correctly now.
* contributing updates first draft * ran yarn prettier * updated links * removed test xref * Update contribute/documentation/README.md Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com> Co-authored-by: Fiona Artiaga <89225282+GrafanaWriter@users.noreply.github.com>