enhance news

NEWS.md

@@ -1,5 +1,15 @@
 # teal.data 0.6.0.9005
 
+### Enhancements
+
+- `datanames()`
+    - if `join_keys` are provided, the `datanames()` are now sorted in topological way (Kahn algorithm),
+    which means the parent dataset always precedes the child dataset.
+    - are extended by the parent dataset name, if one of the child dataset exist in `datanames()` and
+    the connection between child-parent is set through `join_keys` and `parent` exist in `teal_data` environment.
+    - do not allow to set a dataset name that do not exist in `teal_data` environment.
+    - `teal_data` no longer set default `datanames()` based on `join_keys` names - it uses only data names.
+
 # teal.data 0.6.0
 
 ### Enhancements