Correcting spelling

DeFadeVisualization.ipynb

@@ -52,7 +52,7 @@
     "\n",
     "#The higher the render_factor, the more GPU memory will be used and generally images will look better.  \n",
     "#11GB can take a factor of 42 max.  Performance generally gracefully degrades with lower factors, \n",
-    "#though you may also find that certiain images will actually render better at lower numbers.  \n",
+    "#though you may also find that certain images will actually render better at lower numbers.  \n",
     "#This tends to be the case with the oldest photos.\n",
     "render_factor=41"
    ]

DeOldify_colab.ipynb

@@ -272,7 +272,7 @@
     "\n",
     "#The higher the render_factor, the more GPU memory will be used and generally images will look better.  \n",
     "#11GB can take a factor of 42 max.  Performance generally gracefully degrades with lower factors, \n",
-    "#though you may also find that certiain images will actually render better at lower numbers.  \n",
+    "#though you may also find that certain images will actually render better at lower numbers.  \n",
     "#This tends to be the case with the oldest photos.\n",
     "render_factor=42\n",
     "filters = [Colorizer(gpu=0, weights_path=weights_path)]\n",