Note Exception about float in Attribute Docs (rojo-rbx#422)

docs/attributes.md

@@ -75,7 +75,7 @@ It is worth noting that Roblox Studio will interpret any non-zero value as `true
 
 The `Float32` type is stored as a [single-precision float](https://en.wikipedia.org/wiki/Single-precision_floating-point_format), also known as an `f32` or `single`, or sometimes even simply `float`.
 
-This type is accepted by Roblox Studio but will not ever be generated by it.
+This type is accepted by Roblox Studio, though will almost never be generated by it. In some cases the Roblox Studio Properties widget may cause this type to appear.
 
 ### Float64
 **Type ID `0x06`**