[Doc][Module Name] On Supported Data Sources, the left column needs to stay fixed because the table is too wide

On https://devlake.apache.org/docs/Overview/SupportedDataSources, the second table is very wide and when I scroll to the right of the table, I can no longer see the left column, which makes it impossible to read the table.

This is a markdown file so it probably doesn't support this feature for tables. I'm wondering if there's a good way to do it.