Merge branch 'main' of github.com:Circuitscape/SpatialGraphs.jl into main

Author: Vincent Landau

README.md

@@ -1,15 +1,16 @@
 # SpatialGraphs.jl
 
+_Types and constructors for spatially referenced graphs._
+
 | **Documentation** | **Build Status**|
 |:-----------------------------------------------------:|:------------------------------------:|
 [![docs](https://img.shields.io/badge/docs-latest-blue.svg)](https://docs.circuitscape.org/SpatialGraphs.jl/latest) | [![Build Status](https://github.com/Circuitscape/SpatialGraphs.jl/workflows/CI/badge.svg)](https://github.com/Circuitscape/SpatialGraphs.jl/actions?query=workflow%3ACI) [![codecov](https://codecov.io/gh/Circuitscape/SpatialGraphs.jl/branch/main/graph/badge.svg?token=67OX4UPWOL)](https://codecov.io/gh/Circuitscape/SpatialGraphs.jl)
 
-SpatialGraphs.jl introduces the `AbstractSpatialGraph`. `AbstractSpatialGraphs` 
-are a subtype of `Graphs.AbstractGraph`, and can be weighted or directed. 
-AbstractSpatialGraphs are AbstractGraphs, so methods from Graphs.jl work right
-out of the box.
+SpatialGraphs.jl introduces the `AbstractSpatialGraph` and other subtypes. The `AbstractSpatialGraph` 
+is a `Graphs.AbstractGraph`, and can be weighted or directed. SpatialGraphs.jl extends the
+Graphs interface, so methods from Graphs.jl work right out of the box.
 
-`AbstractSpatialGraph`s themselves contain an `AbstractGraph` in addition to 
+An `AbstractSpatialGraph` is a composite type that contains an `AbstractGraph` in addition to 
 metadata that details the spatial location of each vertex in the
 graph. At this time, only raster-based graph types have been developed (and 
 vertex locations are stored in a `Rasters.Raster`), but there are plans to