DOC Add what's new for scikit-learn#13312

Author: jnothman

doc/whats_new/v0.20.rst

@@ -43,6 +43,13 @@ Changelog
   threaded when `n_jobs > 1` or `n_jobs = -1`.
   :issue:`13005` by :user:`Prabakaran Kumaresshan <nixphix>`.
 
+:mod:`sklearn.datasets`
+............................
+
+- |Efficiency| :func:`sklearn.datasets.fetch_openml` now loads data by
+  streaming, avoiding high memory usage.  :issue:`13312` by `Joris Van den
+  Bossche`_.
+
 :mod:`sklearn.feature_extraction`
 .................................
 
@@ -102,11 +109,11 @@ Adrin Jalali, Agamemnon Krasoulis, Albert Thomas, Andreas Mueller, Aurélien
 Bellet, bertrandhaut, Bharat Raghunathan, Dowon, Emmanuel Arias, Fibinse
 Xavier, Finn O'Shea, Gabriel Vacaliuc, Gael Varoquaux, Guillaume Lemaitre,
 Hanmin Qin, joaak, Joel Nothman, Joris Van den Bossche, Jérémie Méhault, kms15,
-Kossori Aruku, maikia, Manuel López-Ibáñez, Marco Gorelli, MarcoGorelli,
-mferrari3, Mickaël Schoentgen, Nicolas Hug, pavlos kallis, Pierre Glaser,
-pierretallotte, Prabakaran Kumaresshan, Reshama Shaikh, Rohit Kapoor, Roman
-Yurchak, SandroCasagrande, Tashay Green, Thomas Fan, Vishaal Kapoor, Zhuyi Xue,
-Zijie (ZJ) Poh
+Kossori Aruku, Lakshya KD, maikia, Manuel López-Ibáñez, Marco Gorelli,
+MarcoGorelli, mferrari3, Mickaël Schoentgen, Nicolas Hug, pavlos kallis, Pierre
+Glaser, pierretallotte, Prabakaran Kumaresshan, Reshama Shaikh, Rohit Kapoor,
+Roman Yurchak, SandroCasagrande, Tashay Green, Thomas Fan, Vishaal Kapoor,
+Zhuyi Xue, Zijie (ZJ) Poh
 
 .. _changes_0_20_2: