docstring fix

Author: OrtnerMichael

magpylib_force/force.py

@@ -20,7 +20,7 @@ def getFT(sources, targets, anchor=None, eps=1e-5, squeeze=True):
         Sources that generate the magnetic field. Can be a single source (or collection)
         or a 1D list of l sources and/or collection objects.
 
-    targets: single object or 1D list of t objects that are in [Cuboid, Polyline]
+    targets: single object or 1D list of t objects that are in [Sphere, Cuboid, Polyline]
         Force and Torque acting on targets in the magnetic field generated by the sources
         will be computed. A target must have a valid `meshing` parameter.