fix wording

Author: fabridamicelli

book/06_imports.ipynb

@@ -164,10 +164,9 @@
     "import mymodule\n",
     "```\n",
     "\n",
-    "A Python module (any `.py` file) might contain code that we want to run (for example as a one-off script) along code that we only want to use somewhere else.  \n",
-    "We can isolate the part of the code that we want to run as a script with this trick.\n",
+    "A Python module (any `.py` file) might contain code that we want to run as a script alongside code that we only want to use somewhere else (importing parts of it).\n",
     "\n",
-    "That's easier to show than to explain, so let's do some exercises."
+    "We can isolate part of the code that we want to run as a script with a trick that's easier to show than to explain, so let's do some exercises."
    ]
   },
   {