Refactored comment on query_target

Author: javier-ballester

astroquery/esa/hubble/core.py

@@ -501,9 +501,9 @@ def query_target(self, name, filename=None, async_job=False,
         output_format : string
             optional, default 'votable'
             output format of the query
-        verbose : bool
-            optional, default 'False'
-            Flag to display information about the process
+        radius : int
+            optional, default None
+            radius in arcmin (int, float) or quantity of the cone_search
 
         Returns
         -------