Update the docstring of RegionGeom.create
Update the docstring of RegionGeom.create with links to ds9 string format.
@@ -494,6 +494,12 @@ class RegionGeom(Geom):
def create(cls, region, **kwargs):
"""Create region geometry.
+ The input region can be passed in the form of a ds9 string and will be parsed
+ internally by `~regions.Regions.parse`. See:
+
+ * https://astropy-regions.readthedocs.io/en/stable/region_io.html
+ * http://ds9.si.edu/doc/ref/region.html
+
Parameters
----------
region : str or `~regions.SkyRegion`
