Fix some errors in the doc, and change the text to be within line length recommendations.
Fix some errors in the doc, and change the text to be within line length recommendations.

4dn-dcic/fourfront,hms-dbmi/fourfront,hms-dbmi/fourfront,4dn-dcic/fourfront,4dn-dcic/fourfront,hms-dbmi/fourfront,4dn-dcic/fourfront,hms-dbmi/fourfront,hms-dbmi/fourfront