AlexNet New Documentation. (#5886)

* [DOC] Add alexnet new documentation.

* [FIX] Fix wrong alexnet header.

* [FIX] Fix the AlexNet paper link.
Co-authored-by: Nicolas Hug <contact@nicolas-hug.com>

docs/source/models/alexnet.rst

+AlexNet
+=======
+
+.. currentmodule:: torchvision.models
+
+The AlexNet model is based on the `ImageNet Classification with Deep Convolutional Neural Networks
+ <https://papers.nips.cc/paper/2012/hash/c399862d3b9d6b76c8436e924a68c45b-Abstract.html>`__
+paper.
+
+
+Model builders
+--------------
+
+The following model builders can be used to instanciate an AlexNet model, with or
+without pre-trained weights. All the model builders internally rely on the
+``torchvision.models.alexnet.AlexNet`` base class. Please refer to the `source
+code
+<https://github.com/pytorch/vision/blob/main/torchvision/models/alexnet.py>`_ for
+more details about this class.
+
+.. autosummary::
+    :toctree: generated/
+    :template: function.rst
+
+    alexnet

docs/source/models/efficientnetv2.rst

 EfficientNetV2
-============
+==============
 
 .. currentmodule:: torchvision.models
 

docs/source/models_new.rst

@@ -36,6 +36,7 @@ weights:
 .. toctree::
    :maxdepth: 1
 
+   models/alexnet
    models/convnext
    models/densenet
    models/efficientnet

torchvision/models/alexnet.py

@@ -73,13 +73,27 @@ class AlexNet_Weights(WeightsEnum):
 @handle_legacy_interface(weights=("pretrained", AlexNet_Weights.IMAGENET1K_V1))
 def alexnet(*, weights: Optional[AlexNet_Weights] = None, progress: bool = True, **kwargs: Any) -> AlexNet:
     r"""AlexNet model architecture from the
-    `"One weird trick..." <https://arxiv.org/abs/1404.5997>`_ paper.
+       `ImageNet Classification with Deep Convolutional Neural Networks
+    <https://papers.nips.cc/paper/2012/hash/c399862d3b9d6b76c8436e924a68c45b-Abstract.html>`_ paper.
        The required minimum input size of the model is 63x63.
 
        Args:
-        weights (AlexNet_Weights, optional): The pretrained weights for the model
-        progress (bool): If True, displays a progress bar of the download to stderr
+           weights (:class:`~torchvision.models.AlexNet_Weights`, optional): The
+               pretrained weights to use. See
+               :class:`~torchvision.models.AlexNet_Weights` below for
+               more details, and possible values. By default, no pre-trained
+               weights are used.
+           progress (bool, optional): If True, displays a progress bar of the
+               download to stderr. Default is True.
+           **kwargs: parameters passed to the ``torchvision.models.squeezenet.AlexNet``
+               base class. Please refer to the `source code
+               <https://github.com/pytorch/vision/blob/main/torchvision/models/alexnet.py>`_
+               for more details about this class.
+
+       .. autoclass:: torchvision.models.AlexNet_Weights
+           :members:
     """
+
     weights = AlexNet_Weights.verify(weights)
 
     if weights is not None: