made changes in fit and conclusion text

Author: mayank2

samples/04_gis_analysts_data_scientists/detecting-airplanes-on-satellite-imagery-using-deep-learning.ipynb

@@ -191,7 +191,7 @@
     "id": "CtdZDnNp2sPw"
    },
    "source": [
-    "Next, we can simply call the model.fit() method and pass a number of epochs to it. The model will then begin to train after finding the optimal learning rate itself."
+    "Next, we can simply call the `model.fit()` method and pass a number of epochs to it. The model will then begin to train after finding the optimal learning rate itself."
    ]
   },
   {
@@ -494,7 +494,7 @@
     "id": "PIr9TfDp2sQ5"
    },
    "source": [
-    "In this notebook, we demonstrated how to use Faster R-CNN model from ArcGIS API for Python in order to detect airplanes in satellite imagery."
+    "In this notebook, we demonstrated how to use the Faster R-CNN model from the ArcGIS API for Python to detect airplanes in satellite imagery."
    ]
   },
   {