fix plus signs

Author: spirinamayya

examples/tutorials/transformers_tutorial.ipynb

@@ -505,10 +505,10 @@
    "source": [
     "| Losses                       | SASRec   |BERT4Rec         |\n",
     "| ------------                 | ---------| --------------- |\n",
-    "| Softmax loss                 | \\+        | \\+               |\n",
-    "| BCE loss                     | \\+        | \\+               |\n",
-    "| gBCE loss                    | \\+        | \\+               |\n",
-    "| Variable number of negatives | \\+        | \\+               |\n"
+    "| Softmax loss                 | +        | +               |\n",
+    "| BCE loss                     | +        | +               |\n",
+    "| gBCE loss                    | +        | +               |\n",
+    "| Variable number of negatives | +        | +               |\n"
    ]
   },
   {
@@ -524,11 +524,11 @@
    "source": [
     "| Customization options   | SASRec   |BERT4Rec         |\n",
     "| ------------            | ---------| --------------- |\n",
-    "| Data preprocessing      | \\+        | \\+               |\n",
-    "| Item net for embeddings | \\+        | \\+               |\n",
-    "| Positional encoding     | \\+        | \\+               |\n",
-    "| Transformer layers      | \\+        | \\+               |\n",
-    "| Model training          | \\+        | \\+               |\n"
+    "| Data preprocessing      | +        | +               |\n",
+    "| Item net for embeddings | +        | +               |\n",
+    "| Positional encoding     | +        | +               |\n",
+    "| Transformer layers      | +        | +               |\n",
+    "| Model training          | +        | +               |\n"
    ]
   },
   {