Add descriptive paragraph for svg graph
Add descriptive paragraph for svg graph

* wqflask/wqflask/templates/environment.html: New paragraph.

zsloan/genenetwork2,genenetwork/genenetwork2,genenetwork/genenetwork2,genenetwork/genenetwork2,zsloan/genenetwork2,genenetwork/genenetwork2,pjotrp/genenetwork2,pjotrp/genenetwork2,pjotrp/genenetwork2,pjotrp/genenetwork2,zsloan/genenetwork2,zsloan/genenetwork2,pjotrp/genenetwork2