DOC: BUG: fix analytical solar zenith formatting (#582)
DOC: BUG: fix analytical solar zenith formatting (#582)

* DOC: BUG: fix analytical solar zenith formatting

* DOC: BUG: fix typos in equation_of_time

mikofski/pvlib-python,wholmgren/pvlib-python,alorenzo175/pvlib-python,cwhanse/pvlib-python,rubennj/pvlib-python,pvlib/pvlib-python,anomam/pvlib-python