fix: minor edits to make dev docs a bit more clear (pypi#17382)

Co-authored-by: Mike Fiedler <miketheman@gmail.com>
Co-authored-by: Dustin Ingram <di@users.noreply.github.com>

docs/dev/development/getting-started.rst

@@ -30,8 +30,11 @@ improve the process:
 Detailed installation instructions
 ----------------------------------
 
-Getting the Warehouse source code
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Get the Warehouse source code
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+First, fork and clone the Warehouse source code to work on it locally.
+
 `Fork <https://docs.github.com/en/get-started/quickstart/fork-a-repo>`_ the repository
 on `GitHub`_ and
 `clone <https://docs.github.com/en/repositories/creating-and-managing-repositories/cloning-a-repository>`_ it to
@@ -54,25 +57,36 @@ you stay up-to-date with our repository:
     git merge upstream/main
 
 
-Configure the development environment
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Create your development environment
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 .. note::
-   In case you are used to using a virtual environment for Python development:
-   it's unnecessary for Warehouse development. Our Makefile scripts execute all
-   developer actions inside Docker containers.
+   Warehouse development can be done using Makefile scripts which
+   execute all developer actions inside Docker containers. You do
+   not need to create a Python virtual environment.
 
-Verifying Make Installation
-~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Verify that you have Make installed
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Verify that you have make installed in your environment
+We use Make to build the docs and the Warehouse site.
+Verify that you have Make installed in your environment.
 
 .. code-block:: console
 
     make --version
 
-If you do not have it installed,
-consult your OS documentation on how to install ``make``.
+If you do not have ``Make`` installed,
+consult your operating system documentation on how to install ``make``.
+
+
+Do you want to build the docs or the Warehouse site?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If you wish to build the entire Warehouse site,
+use Docker and follow the instructions below. However, if you are only
+contributing to the user or development documentation, then you can skip
+setting up Docker below and use ``Make`` instead. To build the docs,
+follow the `instructions here <#build-docs>`_.
 
 
 Why Docker?
@@ -733,13 +747,17 @@ formatting and linting. You can reformat with:
 
     make reformat
 
+.. _build-docs:
 
 Building documentation
 ----------------------
 
 The Warehouse documentation is stored in the :file:`docs/`
-directory. It is written in `reStructured Text`_ and rendered using
-`Sphinx`_.
+directory with three subdirectories: blog, dev and user.
+Development docs (in the dev directory) are written in
+`reStructured Text`_ and rendered using `Sphinx`_. User docs ``/user``
+are written in markdown and rendered using ``mkdocs``. The blog is
+also written in markdown.
 
 Use :command:`make` to build the documentation. For example: