Resolve review comments

Author: teubert

examples/01_Simulation.ipynb

@@ -187,7 +187,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "In the first section we introduced simulating to a set time. For most applications, users are not interested in the system evolution over a certain timeperiod, but instead in simulating to some event of interest.\n",
+    "In the first section we introduced simulating to a set time. For most applications, users are not interested in the system evolution over a certain time period, but instead in simulating to some event of interest.\n",
     "\n",
     "In this section we will introduce the concept of simulating until an event occurs. This section builds upon the concepts introduced in the previous section.\n",
     "\n",
@@ -208,7 +208,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "If you recall, the ThrownObject model is of an object thrown into the air. The model has two events, `impact` and `falling`. In a real prognostic models, these events will likely correspond with some failure, fault, or warning threshold. That said, events can be any event of interest that a user would like to predict. \n",
+    "If you recall, the ThrownObject model is of an object thrown into the air. The model has two events, `impact` and `falling`. In real prognostic models, these events will likely correspond with some failure, fault, or warning threshold. That said, events can be any event of interest that a user would like to predict. \n",
     "\n",
     "Now let's repeat the simulation from the previous example, this time simulating until an event has occured by using the [`simulate_to_threshold`](https://nasa.github.io/progpy/api_ref/prog_models/PrognosticModel.html#prog_models.PrognosticsModel.simulate_to_threshold) method."
    ]
@@ -235,9 +235,9 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "By default, `simulate_to_threshold` simulates until the first event occurs. In this case, that's `falling` (i.e., when the object begins falling). For this model `falling` will always occur before `impact`, but for many models you wont have such a strict ordering of events. \n",
+    "By default, `simulate_to_threshold` simulates until the first event occurs. In this case, that's `falling` (i.e., when the object begins falling). For this model `falling` will always occur before `impact`, but for many models you won't have such a strict ordering of events. \n",
     "\n",
-    "For users interested in when a specific event is reached, you can indicate that using the `threshold_keys` argument. For example,"
+    "For users interested in when a specific event is reached, you can indicate which event(s) you'd like to simulate to using the `threshold_keys` argument. For example,"
    ]
   },
   {