Update structure of source install doc

docs/install/install-from-source.rst

@@ -184,26 +184,58 @@ Is is often sufficient to run the unit tests only. To do so, use
       #
       python -m tox -e windows-quick # (Windows)
 
+
+Using the test runner 
+~~~~~~~~~~~~~~~~~~~~~~
+
+You can run unit tests for PyBaMM using
+
+.. code:: bash
+
+	  # in the PyBaMM/ directory
+	  python run-tests.py --unit
+
+
+The above starts a sub-process using the current python interpreter (i.e. using your current
+python environment) and run the unit tests. This can take a few minutes.
+
+You can also use the test runner to run the doctests:
+
+.. code:: bash
+
+	  python run-tests.py --doctests
+
+There is more to the PyBaMM test runner. To see a list of all options, type
+
+.. code:: bash
+
+	  python run-tests.py --help
+
+How to build the PyBaMM documentation
+-------------------------------------
+
 The documentation is built using
 
 .. code:: bash
 
 	  tox -e docs
 
-This will build the documentation and serve it on the localhost (thanks to `sphinx-autobuild <https://github.com/GaretJax/sphinx-autobuild>`_) for preview.
+This will build the documentation and serve it locally (thanks to `sphinx-autobuild <https://github.com/GaretJax/sphinx-autobuild>`_) for preview.
 The preview will be updated automatically following changes.
 
-In addition, the following tox commands are available:
+Doctests, examples, style and coverage
+--------------------------------------
 
 - ``tox -e examples``: Run the example scripts in ``examples/scripts``.
 - ``tox -e flake8``: Check for PEP8 compliance.
 - ``tox -e doctests``: Run doctests.
 - ``tox -e coverage``: Measure current test coverage.
 
 Note for Windows users
-^^^^^^^^^^^^^^^^^^^^^^
+----------------------
 
 If you are running Windows, the following tox commands must be prefixed by ``windows-``:
+
 - ``tests``
 - ``quick``
 - ``examples``
@@ -214,32 +246,4 @@ For example, to run the full test suite on Windows you would type:
 
 .. code:: bash
 
-	  python -m tox -e windows-tests
-
-
-
-Using the test runner 
-~~~~~~~~~~~~~~~~~~~~~~
-
-You can run unit tests for PyBaMM using
-
-.. code:: bash
-
-	  # in the PyBaMM/ directory
-	  python run-tests.py --unit
-
-
-The above starts a sub-process using the current python interpreter (i.e. using your current
-python environment) and run the unit tests. This can take a few minutes.
-
-You can also use the test runner to run the doctests:
-.. code:: bash
-
-	  python run-tests.py --doctests
-
-There is more to the PyBaMM test runner. To see a list of all options, type
-
-.. code:: bash
-
-	  python run-tests.py --help
-
+	  python -m tox -e windows-tests