#285 Fix docs grammar and formatting

Author: kwabenantim

docs/index.rst

@@ -18,8 +18,8 @@ Sympy or any other python package may need to be updated, especially as python v
 - ``git add``, ``git commit`` and ``git push`` the changes
 - Make a pull request. The tests may throw up some errors that may need fixing. The tests are in the tests folder and the reference data in data/tests.
 - Sympy occasionally changes the exact (but mathematically equivalent) form of the generated code between versions.
-To cope with this, a reference file may have per-sympy-version variants named ``<name>--sympy_X_Y.<ext>`` (e.g. ``<model>--sympy_1_13.cpp``) alongside the base file.
-To regenerate the reference data for a new sympy version, run the tests with the ``CHASTE_CODEGEN_REGENERATE_REFERENCES`` environment variable set (this writes the generated output to ``<reference>.regen.<X>.<Y>`` files).
+   To cope with this, a reference file may have per-sympy-version variants named ``<name>--sympy_X_Y.<ext>`` (e.g. ``<model>--sympy_1_13.cpp``) alongside the base file.
+   To regenerate the reference data for a new sympy version, run the tests with the ``CHASTE_CODEGEN_REGENERATE_REFERENCES`` environment variable set (this writes the generated output to ``<reference>.regen.<X>.<Y>`` files).
 - Mention the changes made in the release notes ``release.txt``
 - To use the changes with chaste, do a new release of chaste_codegen.
 
@@ -31,7 +31,7 @@ Updating the ontology and including it in chaste_codegen
 - *Please note* this same way can be used to update the ``cellml`` in ``chaste_codegen/data/tests/cellml`` submodule if required.
 - Create a new branch ``git checkout -b <name_of_new_branch>``
 - ``git add``, ``git commit`` and ``git push`` the changes
-- Make a pull run the tests and fix any issues that arise
+- Make a pull request, run the tests and fix any issues that arise
 - Update the release notes ``release.txt`` with information about the updated ontology.
 - To use the changes with chaste, do a new release of chaste_codegen.