Add whats new entry for scikit-learn#6282 (scikit-learn#7629)

Author: jakevdp

doc/whats_new.rst

@@ -34,6 +34,11 @@ Enhancements
 Bug fixes
 .........
 
+ - :class:`sklearn.manifold.LocallyLinearEmbedding` now correctly handles
+ integer inputs
+ (`#6282 <https://github.com/scikit-learn/scikit-learn/pull/6282>`_) by
+ `Jake Vanderplas`_.
+
  - The ``min_weight_fraction_leaf`` parameter of tree-based classifiers and
  regressors now assumes uniform sample weights by default if the
  ``sample_weight`` argument is not passed to the ``fit`` function.