Example validation issue:- uc06_3d_annotation.json

[glenrobson]

Currently the example from Configured Scene has a spot light defined as:

{
                  "id": "https://example.org/iiif/3d/lights/1",
                  "type": "SpotLight",
                  "label": { "en": ["Spot Light 1"] },
                  "angle": 90.0,
                  "color": "#A0FFA0"
},

But Angle is defined as:

"The value must be a floating point number greater than 0 and less than 90, and is measured in degrees. "

From https://preview.iiif.io/api/prezi-4/presentation/4.0/model/#angle

Should the text be changed to be less than or equal to 90 or the angel in the example changed?