Fix typo in introduction-to-sessions.ipynb (#721)

Fix typo in introduction-to-sessions.ipynb

Author: schrodinteq

samples/sessions/introduction-to-sessions.ipynb

@@ -189,7 +189,7 @@
       "source": [
         "You also can view your session in the Job management blade of your Quantum Workspace in the Azure Portal. Instead of seeing individual jobs immediately, you will see the session instead, and can click on the session to drill down into the individual jobs. \n",
         "\n",
-        "This may be more organization than we need for our simple 3 quantum jobs program, but the ability to view and manage jobs at the session level can be a big help as you start submitting multiple runs of complex hybrid algorithms that can countain hundreds or thousands of individual jobs."
+        "This may be more organization than we need for our simple 3 quantum jobs program, but the ability to view and manage jobs at the session level can be a big help as you start submitting multiple runs of complex hybrid algorithms that can contain hundreds or thousands of individual jobs."
       ]
     },
     {