Merge pull request GokuMohandas#77 from GokuMohandas/cv

fixed notation bug in pytorch notebook

Author: GokuMohandas

notebooks/07_PyTorch.ipynb

@@ -707,8 +707,8 @@
       },
       "cell_type": "markdown",
       "source": [
-        "* $ x = 3x + 2 $\n",
-        "* $ x = \\sum{y}/N $\n",
+        "* $ y = 3x + 2 $\n",
+        "* $ y = \\sum{y}/N $\n",
         "* $ \\frac{\\partial(z)}{\\partial(x)} = \\frac{\\partial(z)}{\\partial(y)} \\frac{\\partial(z)}{\\partial(x)} = \\frac{1}{N} * 3 = \\frac{1}{12} * 3 = 0.25 $"
       ]
     },