Merge pull request #6 from StephanieML/master

complete reorganization of the website
Correct links to downloadable images.
add material from hmt-docs
Update description of digital apps.
Copy editing.
Add acknowledgments for dev't of CITE architecture.
Use temporary reference to hmt-digital on pelike.
Regularize file name.
Add renamed page.
Use temporary version of pelike URL for hmt-digital.
Add grant info to footer for whole site.  Correct typo in ref. to image arhicve.
Regularize use of standard footer, and fix all references to MSS to use
standard form of names.
Outline topics for "How to edit" guide.
Add step to preparing codex for editing
Add section for hmt editors.
add link to resource forum
Move links to more general page.
Madke link to hmt-docs relative.
Expand outline of contents for how to edit.
Change nav. menu for how-to-edit section.