Missing elements in catalog of elements

Issue in /src/pages/overview/pdf-extract-api/howtos/extract-api.md

I have noticed these elements in the output as well: Span, ExtraCharSpan, HyphenSpan. Some of the elements in the list are not capitalized as they appear in the output.

Open /src/pages/overview/pdf-extract-api/howtos/extract-api.md and review the catalog of elements against the output described in the issue. Confirm that Span, ExtraCharSpan, and HyphenSpan are represented and that the listed element names use the output's capitalization; the documentation is done when the catalog matches the output.

Written by the indexing model from the issue text.