reference issue number in whats_new

Author: TomDLT

doc/whats_new/v0.20.rst

@@ -17,12 +17,13 @@ random sampling procedures.
 
 - :class:`decomposition.IncrementalPCA` in Python 2 (bug fix)
 - :class:`isotonic.IsotonicRegression` (bug fix)
+- :class:`linear_model.ARDRegression` (bug fix)
+- :class:`linear_model.OrthogonalMatchingPursuit` (bug fix)
 - :class:`metrics.roc_auc_score` (bug fix)
 - :class:`metrics.roc_curve` (bug fix)
 - :class:`neural_network.BaseMultilayerPerceptron` (bug fix)
 - :class:`neural_network.MLPRegressor` (bug fix)
 - :class:`neural_network.MLPClassifier` (bug fix)
-- :class:`linear_model.ARDRegression` (bug fix)
 
 Details are listed in the changelog below.
 
@@ -44,7 +45,7 @@ Classifiers and regressors
 
 - Added :class:`naive_bayes.ComplementNB`, which implements the Complement
   Naive Bayes classifier described in Rennie et al. (2003).
-  By :user:`Michael A. Alcorn <airalcorn2>`.
+  :issue:`8190` by :user:`Michael A. Alcorn <airalcorn2>`.
 
 Preprocessing
 
@@ -54,8 +55,8 @@ Preprocessing
   Compared to the existing :class:`OneHotEncoder`, this new class handles
   encoding of all feature types (also handles string-valued features) and
   derives the categories based on the unique values in the features instead of
-  the maximum value in the features.
-  By :user:`Vighnesh Birodkar <vighneshbirodkar>` and `Joris Van den Bossche`_.
+  the maximum value in the features. :issue:`9151` by
+  :user:`Vighnesh Birodkar <vighneshbirodkar>` and `Joris Van den Bossche`_.
 
 Model evaluation
 
@@ -139,7 +140,7 @@ Classifiers and regressors
 
 - Fixed a bug in :class:`linear_model.OrthogonalMatchingPursuit` that was
   broken when setting ``normalize=False``.
-  by `Alexandre Gramfort`_.
+  :issue:`10071` by `Alexandre Gramfort`_.
 
 - Fixed a bug in :class:`linear_model.ARDRegression` which caused incorrectly
   updated estimates for the standard deviation and the coefficients.