Fix wave-turtle path to point to master.

research/nst_blogpost/4_Neural_Style_Transfer_with_Eager_Execution.ipynb

@@ -63,7 +63,7 @@
         "\n",
         "Now how would it look like if Hokusai decided to paint the picture of this Turtle exclusively with this style? Something like this?\n",
         "\n",
-        "<img src=\"https://github.com/MarkDaoust/models/blob/nst_fixes/research/nst_blogpost/wave_turtle.png?raw=1\" alt=\"Drawing\" style=\"width: 500px;\"/>\n",
+        "<img src=\"https://github.com/tensorflow/models/blob/master/research/nst_blogpost/wave_turtle.png?raw=1\" alt=\"Drawing\" style=\"width: 500px;\"/>\n",
         "\n",
         "Is this magic or just deep learning? Fortunately, this doesn’t involve any witchcraft: style transfer is a fun and interesting technique that showcases the capabilities and internal representations of neural networks.  \n",
         "\n",
@@ -1222,4 +1222,4 @@
       "outputs": []
     }
   ]
-}
\ No newline at end of file
+}