remove the text about removing the omero.* logging filter

https://github.com/mtbc/openmicroscopy/commit/3dc00624
Add instructions for using Jekyll
merge develop -Dorg -Ssuccess-only: PR 1038 (updating web doc for embedding viewer)
merge develop -Dorg -Ssuccess-only: PR 1041 (Units documentation)
merge develop -Dorg -Ssuccess-only: PR 1042 (document graph traversal reimplementation for developers)
merge develop -Dorg -Ssuccess-only: PR 1052 (Add instructions for using Jekyll)
merge develop -Dorg -Ssuccess-only

Repository: openmicroscopy/ome-documentation
Already up-to-date.

Merged PRs:
  # PR 1038 aleksandra-tarkowska 'updating web doc for embedding viewer'
  # PR 1041 joshmoore 'Units documentation'
  # PR 1042 mtbc 'document graph traversal reimplementation for developers'
  # PR 1052 manics 'Add instructions for using Jekyll'

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