up, test=develop;test=document_fix

python/paddle/fluid/param_attr.py

@@ -239,7 +239,7 @@ class WeightNormParamAttr(ParamAttr):
             two method: :ref:`api_paddle_fluid_regularizer_L1Decay` ,
             :ref:`api_paddle_fluid_regularizer_L2DecayRegularizer`.
             If regularizer isralso set in ``optimizer``
-            (such as :ref:`api_paddle_optimizer_SGDOptimizer` ), that regularizer setting in
+            (such as :ref:`api_paddle_optimizer_SGD` ), that regularizer setting in
             optimizer will be ignored. Default None, meaning there is no regularization.
         trainable(bool, optional): Whether this parameter is trainable. Default True.
         do_model_average(bool, optional): Whether this parameter should do model average.