update docs

docs/src/index.md

@@ -66,8 +66,8 @@ Note that most regular Julia methods, such as `replace`, work as for a standard
 | | |
 | :------------------------ | :--------------------------------------------------------------------------- |
 | [`rasterize`](@ref) | rasterize points and geometries. |
+| [`coverage`](@ref) | get the fraction of each pixel covered by geometries. |
 | [`extract`](@ref) | extract values from points or geometries. |
-| [`inpolygon`](@ref) | find if a point or points are in a polygon. |
 | [`zonal`](@ref) | calculate zonal statistics for an object masked by geometries. |
 
 
@@ -631,14 +631,15 @@ aggregate!
 boolmask
 classify 
 classify!
+coverage
+coverage!
 convertlookup
 crop
 crs
 disaggregate
 disaggregate!
 extend
 extract
-inpolygon
 mappedcrs
 mappedbounds
 mappedindex