src/ layout structure

[tony]

Fixes #44

Changes

• Moves pytest_sphinx.py to src/

• Removes MANIFEST.in

  Files in pytest-sphinx-0.4.0.tar.gz

  pytest-sphinx-0.4.0/
  pytest-sphinx-0.4.0/LICENSE
  pytest-sphinx-0.4.0/PKG-INFO
  pytest-sphinx-0.4.0/README.rst
  pytest-sphinx-0.4.0/pyproject.toml
  pytest-sphinx-0.4.0/setup.cfg
  pytest-sphinx-0.4.0/src/
  pytest-sphinx-0.4.0/src/pytest_sphinx.egg-info/
  pytest-sphinx-0.4.0/src/pytest_sphinx.egg-info/PKG-INFO
  pytest-sphinx-0.4.0/src/pytest_sphinx.egg-info/SOURCES.txt
  pytest-sphinx-0.4.0/src/pytest_sphinx.egg-info/dependency_links.txt
  pytest-sphinx-0.4.0/src/pytest_sphinx.egg-info/entry_points.txt
  pytest-sphinx-0.4.0/src/pytest_sphinx.egg-info/requires.txt
  pytest-sphinx-0.4.0/src/pytest_sphinx.egg-info/top_level.txt
  pytest-sphinx-0.4.0/src/pytest_sphinx.py
  

• Includes typo fix from build(deps): Fix typo in package name #43