add draft documentation of shared canvas data model
slight formatting fixes; add info on general aggregations
Merge pull request #19 from umd-mith/master

Update with latest from umd-mith repo
initial checking of markdown version of encoding guidelines
initial commit of markdown version of tei element list
Merge pull request #20 from umd-mith/master

Update with latest from umd-mith repo - restructuring of repo
Merge pull request #21 from jgsmith/master

Update with repo reorganization
modify dc prefixes to lessen surprise
Merge pull request #82 from jgsmith/docs

Documentation of Shared Canvas schema and TEI encoding schema