add GeoData dep, fix typo

Author: Vincent Landau

Project.toml

@@ -5,10 +5,12 @@ version = "0.0.1"
 
 [deps]
 ArchGDAL = "c9ce4bd3-c3d5-55b8-8973-c0e20141b8c3"
+GeoData = "9b6fcbb8-86d6-11e9-1ce7-23a6bb139a78"
 LightGraphs = "093fc24a-ae57-5d10-9952-331d41423f4d"
 SimpleWeightedGraphs = "47aef6b3-ad0c-573a-a1e2-d07658019622"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
 ArchGDAL = "0.6"
+GeoData = "0.4.6"
 julia = "1.6"

src/structs.jl

@@ -11,7 +11,7 @@ An AbstractSpatialGraph must contain the following attributes/element:
 abstract type AbstractSpatialGraph{T} <: AbstractGraph{T} end
 
 """
-    AbstractRsterGraph{T}
+    AbstractRasterGraph{T}
 
 An abstract type representing a spatially referenced graph, with graph vertices corresponding to pixels in a raster.