Fix spelling error in projector plugin's Jupyter notebook (#7020)

Author: rossjudson

docs/tensorboard_projector_plugin.ipynb

@@ -285,7 +285,7 @@
       },
       "source": [
         "## Analysis\n",
-        "The TensorBoard Projector is a great tool for interpreting and visualzing embedding. The dashboard allows users to search for specific terms, and highlights words that are adjacent to each other in the embedding (low-dimensional) space. From this example we can see that Wes **Anderson** and Alfred **Hitchcock** are both rather neutral terms, but that they are referenced in different contexts.\n",
+        "The TensorBoard Projector is a great tool for interpreting and visualizing embedding. The dashboard allows users to search for specific terms, and highlights words that are adjacent to each other in the embedding (low-dimensional) space. From this example we can see that Wes **Anderson** and Alfred **Hitchcock** are both rather neutral terms, but that they are referenced in different contexts.\n",
         "\n",
         "<!-- <img class=\"tfo-display-only-on-site\" src=\"images/embedding_projector_hitchcock.png?raw=1\"/> -->\n",
         "\n",