docs(adaptive hotspot example)

docs/src/samplers/adaptivehotspot.md

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+# Adaptive Hotspot
+
+
+```@docs; canonical=false
+AdaptiveHotspot
+```
+
+## Example 
+
+### Using a raster 
+
+First, load the packages we will use for this example
+
+```@example 1
+using BiodiversityObservationNetworks 
+using CairoMakie
+using GeoMakie
+using NeutralLandscapes
+import SpeciesDistributionToolkit as SDT
+```
+
+Now we'll generate a synthetic uncertainty layer using
+[`NeutralLandscapes.jl`](http://docs.ecojulia.org/NeutralLandscapes.jl/dev/).
+
+
+```@example 1
+uncertainty = rand(MidpointDisplacement(), (100, 100))
+```
+
+Let's plot it
+
+```@example 1
+heatmap(uncertainty)
+```
+
+and now we sample a BON
+
+```@example 1
+bon = sample(AdaptiveHotspot(), uncertainty)
+```
+
+and plot it
+
+```@example 1
+f = Figure()
+bonplot(f[1,1], bon, uncertainty)
+f
+```
+