Add section on markers.
Change top-level marker example and add extra ref.
Fix typo in --repeat option.
Mention setting PYTHONPATH for pytest.
Tweak mark-up a little.
Merge pull request #1039 from ximenesuk/more-markers

Add more detail on pytest markers
merge develop -Dnone -Ibreaking -Eexclude -Ssuccess-only

Repository: openmicroscopy/ome-documentation
Excluded PRs:
  # PR 1042 mtbc 'document graph traversal reimplementation for developers' (user: mtbc)
  # PR 1041 joshmoore 'Units documentation' (user: joshmoore)
  # PR 1038 aleksandra-tarkowska 'updating web doc for embedding viewer' (user: aleksandra-tarkowska)
Updating 84e4427..fb16f30
Previously merged:
  # PR 1039 ximenesuk 'Add more detail on pytest markers'
  # PR 1040 snoopycrimecop 'Update auto-generated properties'
  # PR 1037 manics 'Add OMERO-5.1-{latest,merge}-deploy-win jobs to contributing'

Generated by OME-5.1-breaking-push#207 (http://ci.openmicroscopy.org/job/OME-5.1-breaking-push/207/)