some more small tweaks of explanation and spelling fixes

doc/src/Build_manual.rst

@@ -221,8 +221,9 @@ HTML as a quick-n-dirty way of checking your manual page.
 
 This translation uses `Pandoc <https://pandoc.org>`_ instead of Sphinx
 and thus all special Sphinx features (cross-references, advanced tables,
-embedding of Python docstring and doxygen documentation, and so on) will
-not render correctly.  But this is a **very fast** way to check the content
+embedding of Python docstrings or doxygen documentation, and so on) will
+not render correctly.  Most embedded math should render correctly.  This
+is a **very fast** way to check the syntaxs and layout of documentation
 as HTML while writing the documentation.
 
 To translate **all** manual pages, you can type ``make fasthtml`` at the
@@ -235,7 +236,8 @@ directly translate only individual pages: e.g. to translate only the
 
 After writing the documentation is completed, you will still need
 to verify with ``make html`` and ``make pdf`` that it translates
-correctly.
+correctly in the actual translations used for download and online
+documentation.
 
 Tests for consistency, completeness, and other known issues
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

doc/utils/sphinx-config/false_positives.txt

@@ -856,6 +856,7 @@ DNi
 Dobnikar
 Dobson
 docenv
+docstrings
 Dodds
 dodgerblue
 dof
@@ -3261,6 +3262,7 @@ resquared
 REsquared
 restartfile
 restartinfo
+reStructuredText
 Restrepo
 rethrowing
 Revenga