edits
modified copy paste section
edits; added screen capture for edit exhibit
edit
broken toc link fix
updated screenshot, minor edits
Fixed broken link; minor edits.
More edits.
nit
updated screen capture for customize collections.
TOC modification.
Added section for import export, TOC modification.
expanded the table of contents.
refactored topic headings
updated tours section
updated copy paste favorite section.
formatting, copy paste and twitter bar.
Added procedures for creating/editing artifacts.
Added procedure for managing editors' list.
formatting, nits
Added screenshot.
Added procedure for creating collection.
update, screen shot, formatting
Updated create a timeline procedure + screen shot.
minor edits for consistency