Update the introduction section

docs/source/index.rst

@@ -17,14 +17,12 @@ storage for robustness.
    :width: 500
 
 The project storage is suitable for version control software, and also well suited for file
-synchronisation tools. All text is saved as plain text files with a meta data header. The core
-project structure is stored in a single project XML file. Other meta data is saved as JSON files.
-See the :ref:`a_breakdown_storage` section for more details.
+synchronisation tools. All text is saved as plain text files, and your project data as standard
+data formats in XML and JSON. See :ref:`a_tech_overview` for more details.
 
-Any operating system that can run Python 3 and has the Qt 5 libraries should be able to run
-novelWriter. It runs fine on Linux, Windows and MacOS, and users have tested it on other platforms
-as well. novelWriter can be run directly from the Python source, or installed from packages or with
-pip. See :ref:`a_started` for more details.
+Any operating system that has Python 3 and the Qt 5 libraries should be able to run novelWriter.
+It runs fine on Linux, Windows and MacOS, and users have tested it on other platforms as well.
+See :ref:`a_started` for more details.
 
 **Useful Links**
 
@@ -53,7 +51,6 @@ pip. See :ref:`a_started` for more details.
    int_overview
    int_started
    int_howto
-   int_customise
    int_glossary
 
 .. toctree::
@@ -83,6 +80,7 @@ pip. See :ref:`a_started` for more details.
    :caption: Additional Details
    :hidden:
 
+   more_customise
    more_projectformat
    more_counting
 
@@ -91,6 +89,7 @@ pip. See :ref:`a_started` for more details.
    :caption: Technical Topics
    :hidden:
 
+   tech_overview
    tech_locations
    tech_storage
    tech_source