org-manual: Explain how to deal with literal $ parsed as LaTeX fragments

* doc/org-manual.org (LaTeX fragments): Mention entities and
zero-width space as workarounds when literal "$" is needed, but Org
matches it as LaTeX fragment.

Reported-by: Paul Rubin <paulr@hackyon.net>
Link: https://orgmode.org/list/49c5dcf6-26fa-5fe1-1778-c932d056eadb@hackyon.net
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Ihor Radchenko 2023-07-01 13:00:30 +03:00
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@ -11274,6 +11274,11 @@ snippets are identified as LaTeX source code:
between, and if the closing =$= is followed by whitespace or
punctuation (but not a dash).
Sometimes, it may necessary to have a literal dollar symbol even
when it is recognized as LaTeX math delimiter. Org provides =\dollar= and
=\USD= entities (see [[*Special Symbols]]) that are rendered as =$= for
such scenarios. Also, see [[*Escape Character]].
#+texinfo: @noindent
For example: