Add transformer architecture (#26)

* first implementation development and explanation

* detailed explanations added

* torchinfo version added

* add math

---------

Co-authored-by: Fabian Perez *-* <nelsonfabiancs8@gmail.com>

Author: guillepinto

automation/notebooks-table-data.csv

@@ -14,4 +14,5 @@ GloVe Word Embeddings, data_exploration/glove-word-embeddings.ipynb,https://gith
 Vision Transformer (ViT),architectures/vit.ipynb,,https://arxiv.org/pdf/2010.11929
 Multi-Head Attention, modules/multihead-self-attention.ipynb,,https://arxiv.org/abs/1706.03762
 ResNet,architectures/resnet.ipynb,,https://arxiv.org/abs/1512.03385
-Convolutional Block Attention, modules/convolutional-block-attention.ipynb,,https://arxiv.org/abs/1807.06521
+Convolutional Block Attention, modules/convolutional-block-attention.ipynb,,https://arxiv.org/abs/1807.06521
+Transformer, architectures/transformer.ipynb,,https://arxiv.org/abs/1706.03762