Show the structure of text tags at the current cursor. This is
most useful when trying to troubleshoot search-and-replace functionality
using body_replace_all_text.
Examples
doc <- read_docx()
doc <- body_add_par(doc, "Placeholder one")
doc <- body_add_par(doc, "Placeholder two")
# Show text chunk at cursor
docx_show_chunk(doc) # Output is 'Placeholder two'
#> 1 text nodes found at this cursor.
#> <w:t>: 'Placeholder two'