Add instructions for using Jekyll
adjusting warning box
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 1052 (Add instructions for using Jekyll)
merge develop -Dorg -Ssuccess-only

Repository: openmicroscopy/ome-documentation
Excluded PRs:
  # PR 1042 mtbc 'document graph traversal reimplementation for developers' (status: pending)
Already up-to-date.

Merged PRs:
  # PR 1038 aleksandra-tarkowska 'updating web doc for embedding viewer'
  # PR 1041 joshmoore 'Units documentation'
  # PR 1052 manics 'Add instructions for using Jekyll'

Generated by OME-5.1-merge-push#640 (http://ci.openmicroscopy.org/job/OME-5.1-merge-push/640/)