Updating "Classifying Names with a Character-Level RNN" (#2954)

* Updating 8 year old tutorial to include DataLoader, splitting into train and test sets as well as simplifying content
---------

Co-authored-by: Svetlana Karslioglu <svekars@meta.com>
Co-authored-by: Joel Schlosser <75754324+jbschlosser@users.noreply.github.com>

Author: 3 people

en-wordlist.txt

@@ -33,6 +33,7 @@ Captum
 Captum's
 CartPole
 Cayley
+CharRNN
 Chatbots
 Chen
 Colab
@@ -155,6 +156,7 @@ MaskRCNN
 Minifier
 MobileNet
 ModelABC
+MPS
 Mypy
 NAS
 NCCL
@@ -376,6 +378,7 @@ enum
 eq
 equalities
 et
+eval
 evaluateInput
 extensibility
 fastai
@@ -427,6 +430,7 @@ jpg
 json
 judgements
 jupyter
+kernels
 keypoint
 kwargs
 labelled
@@ -613,6 +617,7 @@ uncomment
 uncommented
 underflowing
 unfused
+unicode
 unimodal
 unigram
 unnormalized