Request: add more to the Help section for dnadiff

[jennaj]

Tool toolshed.g2.bx.psu.edu/repos/iuc/mummer_dnadiff/mummer_dnadiff/4.0.0rc1+galaxy3

Add this content https://github.com/mummer4/mummer/blob/master/docs/dnadiff.README

To better clarify these outputs

tools-iuc/tools/mummer4/dnadiff.xml

Lines 86 to 95 in e8ac361

	**Output files:**
	* report: Summary of alignments, differences and SNPs
	* delta: Standard nucmer alignment output
	* 1delta: 1-to-1 alignment from delta-filter -1
	* mdelta: M-to-M alignment from delta-filter -m
	* 1coords: 1-to-1 coordinates from show-coords -THrcl .1delta
	* mcoords: M-to-M coordinates from show-coords -THrcl .mdelta
	* snps: SNPs from show-snps -rlTHC .1delta
	* rdiff: Classified ref breakpoints from show-diff -rH .mdelta
	* qdiff: Classified qry breakpoints from show-diff -qH .mdelta