rename import

lib/src/booleans/boolean_contains.dart

@@ -3,7 +3,7 @@ import 'package:turf/turf.dart';
 
 import 'boolean_point_in_polygon.dart';
 import 'boolean_point_on_line.dart';
-import 'boolean_within_helper.dart';
+import 'boolean_helper.dart';
 
 /// [booleanContains] returns [true] if the second geometry is completely contained
 /// by the first geometry.

lib/src/booleans/discussion.md

@@ -0,0 +1,29 @@
+
+```
+
+// booleanWithin(Multipoint, LineString) -> at least one point not at start or end.
+// booleanWithin(Point, LineString) -> ignore Vertices.
+// booleanWithin(Point, Polygon) -> ignore Vertices.
+// booleanWithin(MultiPoint, LineString) -> at least one inner point.
+// booleanWithin(MultiPoint, Polygon) -> at least one inner point.
+// booleanWithin(LineString, LineString) -> no check if there is a inner point.
+// booleanWithin(LineString, Polygon) -> at least one point of the line or one 
+//    point between two point of the line is not on the boundary.
+// booleanWithin(Polygon, Polygon) -> no check if there is a inner point.
+
+// booleanWithin(LineString, Polygon): TurfJs seems to have an bug. When the last
+// point of the line is outside of the polygon, the function returns true.
+// turf-boolean-within -> isLineInPoly
+
+```
+
+
+
+https://geojson.io/#map=4.84/4.83/2.16
+
+
+## Polygon is within polygon
+file: examples/booleans/within/true/Polygon/Polygon/skip-PolygonIsWIthinPolygon.geojson
+
+This test fails, because the bounding box of the first polygon is not complete within the second polygon. Both polygons share one point.
+I'm not sure, if this is the expected behavior. Other within functions allow it if one geometry is on the border of another geometry, if