Investigate Column Accessor repr's readability in docs

[tamargrey]

When showing the Woodwork Column Accessor in docs, the semantic tag information can get cut off and need to be scrolled to see the entire repr. The only current usage will be in the Working with Logical Types and Semantic Tags guide (here).

We should see if there's a config that can be set for the cell in question, and if none can be found, consider reformatting the Column Accessor repr to put the information on separate lines.