doc: add section about errorformat develop/debug (#677)
doc: add section about errorformat develop/debug (#677)


neomake/neomake,euclio/neomake,euclio/neomake,nerdrew/neomake,codeinabox/neomake,neomake/neomake,bonds/neomake,nerdrew/neomake,datanoise/neomake,bonds/neomake