Doc/overall edit dpf post (#151)

* Edits for gettting started and user guide

* Edits to PY files for the API

* More PY file edits

* Edits to examples

* Edit contribute topic

* More edits to examples

* Edits to eliminate Vale errors

* Fix format error in PY file

* Fix more format issues in PY file

* Fix more format issues in PY files

* Fix issues in PY files

* Remove blank space at end of line

* Fix space issues

* Fix yet another doc style issue

* Remove space at end of line

* Fix inconsistent heading level

* Add blank line

* Fix code line (I think it got separated into multiple lines inadvertently.)

* Remove blank spaces after end of lines.

* Remove blank spaces after end of lines.

* Attempt to fix some testing errors

* Fix some more errors

* Keep making changes to try resolving issues

* Apply suggestions from code review

@Roberto--Somehow the merge head was still there and the changes didn't get saved. Weird. Thankfully, the edits were minor! Thanks!

Co-authored-by: Roberto Pastor Muela <[email protected]>

Co-authored-by: Roberto Pastor Muela <[email protected]>

Author: PipKat

docs/source/getting_started/install.rst

@@ -8,7 +8,6 @@ Install using ``pip``
 ---------------------
 
 `pip <https://pypi.org/project/pip/>`_ is the package installer for Python.
-
 To use PyDPF-Post with Ansys 2021 R1 or later, install the latest version
 with:
 

docs/source/index.rst

@@ -50,7 +50,6 @@ MAPDL:
     Basic stress contour plot
 
 Here is how you extract the raw data as a :class:`numpy.ndarray` array:
-
 .. code:: python
 
    >>> stress.xx.get_data_at_field(0)