[#2969] update install section in ARM about docs

diff --git a/doc/sphinx/arm/install.rst b/doc/sphinx/arm/install.rst
index 50d5189512019b445af06027f3881cac76bde8c0..c43cc56b9e3ec014ee1771dcc3172b8d6a44978a 100644 (file)
--- a/doc/sphinx/arm/install.rst
+++ b/doc/sphinx/arm/install.rst
@@ -187,12 +187,15 @@ the system:
    configuration option to build the unit tests.
 
 -  The documentation generation tools `Sphinx <https://www.sphinx-doc.org/>`_,
-   texlive with its extensions, and Doxygen, if using the ``--enable-generate-docs``
-   configuration option to create the documentation. Specifically,
-   with Fedora, python3-sphinx, texlive, and texlive-collection-latexextra are necessary;
-   with Ubuntu, python3-sphinx, python3-sphinx-rtd-theme, and texlive-binaries
-   are needed. If LaTeX packages are missing, Kea skips PDF generation and produces
-   only HTML documents.
+   texlive with its extensions, and Doxygen, if using the
+   ``--enable-generate-docs`` configuration option to create the documentation.
+   Specifically, with Fedora, ``python3-sphinx``, ``python3-sphinx_rtd_theme``,
+   ``python3-sphinx-tabs``, ``texlive``, and ``texlive-collection-latexextra``
+   are necessary.
+   With Ubuntu, ``python3-sphinx``, ``python3-sphinx-rtd-theme``,
+   ``python3-sphinx-tabs``, ``texlive``, and ``texlive-latex-extra`` are needed.
+   If LaTeX packages are missing, Kea skips PDF generation and produces only
+   HTML documents.
 
 Visit ISC's Knowledgebase at https://kb.isc.org/docs/installing-kea for
 system-specific installation tips.