diff --git a/docs/02_notebooks/L7_Experiment.ipynb b/docs/02_notebooks/L7_Experiment.ipynb
index 9a97b20..0a6675c 100644
--- a/docs/02_notebooks/L7_Experiment.ipynb
+++ b/docs/02_notebooks/L7_Experiment.ipynb
@@ -152,7 +152,7 @@
     "id": "Lh2-hwE5Dn9I"
    },
    "source": [
-    "Once we have defined the actor, the critic and the optimizer. We can use them to construct our PPO agent. CartPole is a discrete action space problem, so the distribution of our action space can be a categorical distribution."
+    "Once we have defined the actor, the critic and the optimizer, we can use them to construct our PPO agent. CartPole is a discrete action space problem, so the distribution of our action space can be a categorical distribution."
    ]
   },
   {