add irradiance.dni() function to Decomposing and combining irradiance…#692

Merged

wholmgren merged 1 commit intopvlib:masterfrom

May 2, 2019

Commits on Apr 24, 2019

add irradiance.dni() function to Decomposing and combining irradiance section of api.rst. this seems to be the most reasonable section to reference the function. Issue #686.
tahentx
committed