Adds paragraphs with introduction and recommendations for null values section.
Starting to get null values table added.
Null values table fully added, may require some further tweaks.
Adds standard format section.  Figure will follow in a separate file.
Adds file of draft of standard formatting errors figure.
Merge pull request #3 from embaldridge/format_nullvalues

Format null values
Initial draft of Introduction
Merge remote-tracking branch 'upstream/master'
Merge pull request #2 from dmcglinn/master

Share Data and Standard Structure sections
Merge remote-tracking branch 'upstream/master'
Adds another common error, minor rearranging of samples.
Minor cleanup of Introduction draft.
Merge pull request #4 from ethanwhite/introduction

Draft of Introduction
Draft of Concluding Remarks
First Entry: Unprocessed Data and Combining/Linking Tables
Merge pull request #5 from ethanwhite/conclusion

Draft of Concluding Remarks
cleaned up the text for quality control.
edited text in metadata section
Updates the standard format section of the paper.
Merge remote-tracking branch 'upstream/master'