Added paragraphs to sections 9 and 10.

Added paragraphs on repos and licensing. Added table on licensing. -KL
Temporarily removed sections 9 and 10 -KL
Added sections 9, 10, and figure -KL
Resolving special character conflict
Update data_sharing_ms.md

Adds a period to the null values table.
added carriage returns to metadata section
added carriage returns to quality control section
note to self on adding MR info to metadata section
added some refs to the metadata MR section
added software info, citations
linked to webpages for metadata standards
Edited the standard data structure section by adding 5 specific guidelines, added a table to illustrate cross-tabs, and deleted material on unique row ids.
Merge branch 'master' of github.com:klocey/data-sharing-paper
Merge remote-tracking branch 'upstream/master'
Merge pull request #10 from dmcglinn/master

Updated data structure section
finished table in section 9 -KL
Merge pull request #11 from klocey/master

Completed table on repositories -KL
Adds an explanatory table caption for null values table.
Merge pull request #12 from embaldridge/master

Null values table caption
added a few tools to metadata section