remove "for example" from azimuth defintion

See #2448 (comment)

Author: RDaxini

docs/sphinx/source/user_guide/extras/nomenclature.rst

@@ -148,7 +148,7 @@ There is a convention on consistent variable names throughout the library:
 
     solar_azimuth
         Azimuth angle of the sun in degrees East of North. Must be >=0 and <=360.
-        The pvlib-python convention is defined as degrees east of north. For example,
+        The pvlib-python convention is defined as degrees east of north, so that
         North = 0°, East = 90°, South = 180°, West = 270°.
 
     solar_zenith
@@ -165,8 +165,8 @@ There is a convention on consistent variable names throughout the library:
 
     surface_azimuth
         Azimuth angle of the surface in degrees East of North. Must be >=0 and <=360.
-        The pvlib-python convention is defined as degrees east (clockwise) of north.
-        For example, North = 0°, East = 90°, South = 180°, West = 270°. Other tools may
+        The pvlib-python convention is defined as degrees east (clockwise) of north, so
+        that North = 0°, East = 90°, South = 180°, West = 270°. Other tools may
         use different conventions. 
 
     surface_tilt