Gitlab links not public

[DonRichards]

All of the Gitlab links on the readme are not public. https://git.unl.edu/xxxxx

Running the demonstrations

Exploration - Document Segmentation:

1. Download all files in demo/Exploration - Document Segmentation https://git.unl.edu/unl_loc_summer_collab/codebase/tree/master/demo/Exploration%20-%20Document%20Segmentation <-- Link