Update 19_learner.ipynb

19_learner.ipynb

@@ -779,7 +779,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "and test it works:"
+    "and test if it works:"
    ]
   },
   {
@@ -1443,7 +1443,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "`GetAttr` is a fastai class that implements Python's standard `__getattr__` and `__dir__` methods for you, such such any time you try to access an attribute that doesn't exist, it passes the request along to whatever you have defined as `_default`."
+    "`GetAttr` is a fastai class that implements Python's standard `__getattr__` and `__dir__` methods for you, such that any time you try to access an attribute that doesn't exist, it passes the request along to whatever you have defined as `_default`."
    ]
   },
   {