Print out embeddings for more illustrative learning (#481)

* print out embeddings for illustrative learning

* suggestion print embeddingcontents

---------

Co-authored-by: rasbt <mail@sebastianraschka.com>

ch02/01_main-chapter-code/ch02.ipynb

@@ -1788,7 +1788,10 @@
    ],
    "source": [
     "token_embeddings = token_embedding_layer(inputs)\n",
-    "print(token_embeddings.shape)"
+    "print(token_embeddings.shape)\n",
+    "\n",
+    "# uncomment & execute the following line to see how the embeddings look like\n",
+    "# print(token_embedding)"
    ]
   },
   {
@@ -1807,7 +1810,10 @@
    "outputs": [],
    "source": [
     "context_length = max_length\n",
-    "pos_embedding_layer = torch.nn.Embedding(context_length, output_dim)"
+    "pos_embedding_layer = torch.nn.Embedding(context_length, output_dim)\n",
+    "\n",
+    "# uncomment & execute the following line to see how the embedding layer weights look like\n",
+    "# print(pos_embedding_layer.weight)"
    ]
   },
   {
@@ -1826,7 +1832,10 @@
    ],
    "source": [
     "pos_embeddings = pos_embedding_layer(torch.arange(max_length))\n",
-    "print(pos_embeddings.shape)"
+    "print(pos_embeddings.shape)\n",
+    "\n",
+    "# uncomment & execute the following line to see how the embeddings look like\n",
+    "# print(pos_embeddings)"
    ]
   },
   {
@@ -1853,7 +1862,10 @@
    ],
    "source": [
     "input_embeddings = token_embeddings + pos_embeddings\n",
-    "print(input_embeddings.shape)"
+    "print(input_embeddings.shape)\n",
+    "\n",
+    "# uncomment & execute the following line to see how the embeddings look like\n",
+    "# print(input_embeddings)"
    ]
   },
   {