update GPT exercise 2b

Author: chizkidd

007_GPT/ex2b.ipynb

@@ -1635,7 +1635,6 @@
     "| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- \n",
     "| A. | **6** | **8** | **512** | **6e-4** | **64** | 100 | **32** | **562** | 18.90 | 0.0331 | 0.4072 | 69.87% | - | 0.2665 | 65.61% | - \n",
     "| B. | **6** | **8** | **512** | **3e-5** | **64** | 100 | **32** | **562** | 18.90 | 0.0050 | 0.6533 | 63.41% | 0.2662 | 0.6437 | 66.87% | 0.2377 \n",
-    "|-|\n",
     "\n",
     "----\n"
    ]