Fix a typo

examples/IPython Kernel/Third Party Rich Output.ipynb

@@ -11,7 +11,7 b''
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "A number of third party libraries defined their own custom display logic. This gives their objcts rich output by default when used in the Notebook."
+    "A number of third party libraries defined their own custom display logic. This gives their objects rich output by default when used in the Notebook."
    ]
   },
   {