Update usage documentation and incorporate last usage file from old doc

docs/source/usage/front_back_matter.rst

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+.. _docs_usage_front_back_matter:
+
+*********************
+Front and Back Matter
+*********************
+
+Front and back matter documents are documents that go before and after your main story text. They
+can include pages like your cover page, content tables, prologues, epilogues, etc. These special
+pages and sections are supported to some extent by novelWriter.
+
+
+.. _docs_usage_front_back_matter_title:
+
+The Title Page
+==============
+
+It is recommended that you add a document at the very top of each **Novel** root folder with the
+novel title in it. You should modify the level 1 heading format code with an ``!`` in order to
+render it as a document title that is excluded from any automatic Table of Content in a manuscript
+build document.
+
+You can also add the author name and address above this if this is required by the manuscript
+format you use, and additional space added before the title.
+
+:bdg-info:`Example`
+
+This is the title page novelWriter generates automatically for a new project as of version 2.6:
+
+.. code-block:: md
+
+   Jane Doe[br]
+   Address Line 1[br]
+   Address Line 2 <<
+
+   [vspace:5]
+
+   #! My Novel
+
+   >> **By Jane Doe** <<
+
+   >> Word Count: [field:textWords] <<
+
+The title is by default centred on the page. You can add more text to the page as you wish, like
+for instance the author's name and details.
+
+
+.. _docs_usage_front_back_matter_pages:
+
+Additional Pages
+================
+
+If you want an additional page of text after the title page, starting on a fresh page, you can add
+``[new page]`` on a line by itself, and continue the text after it. This will insert a page break
+before the text. See :ref:`docs_usage_formatting_breaks` for more details.
+
+
+.. _docs_usage_front_back_matter_unnumbered:
+
+Unnumbered Chapters
+===================
+
+If you use the automatic numbering feature for your chapters, but you want to keep some special
+chapters separate from this, you can add an ``!`` to the level 2 heading formatting code to tell
+the build tool to skip these chapters when adding numbers.
+
+Unnumbered chapters are useful for prologue and epilogue chapters, and also for interlude chapters
+if you use those in your text. There is a separate formatting feature for such chapter titles in
+the **Manuscript Build** tool. See the :ref:`docs_ui_manuscript` page for more details.
+
+
+:bdg-info:`Example`
+
+.. code-block:: md
+
+   ##! Unnumbered Chapter Title
+
+   Chapter Text