add note that explains why there is only a few holidays

kori73 · kori73 · commit cf873d9e2ef5 · 2022-01-11T20:05:13.000+01:00
diff --git a/04_dataframe.ipynb b/04_dataframe.ipynb
@@ -493,7 +493,9 @@
    "source": [
     "### 6.) What holiday has the worst average departure delay?\n",
     "\n",
-    "*Hint*: use [`df.merge`](https://pandas.pydata.org/pandas-docs/stable/user_guide/merging.html) to bring holiday information."
+    "*Hint*: use [`df.merge`](https://pandas.pydata.org/pandas-docs/stable/user_guide/merging.html) to bring holiday information.\n",
+    "\n",
+    "*Note*: If you have prepared the dataset with `--small` argument or set the `DASK_TUTORIAL_SMALL` environment variable to `True`, you might see only a couple of holidays. This is because the small dataset contains a limited number of rows."
    ]
   },
   {

Original file line number	Diff line number	Diff line change
`@@ -493,7 +493,9 @@`
`493`	`493`	`"source": [`
`494`	`494`	`"### 6.) What holiday has the worst average departure delay?\n",`
`495`	`495`	`"\n",`
`496`		- "Hint: use [`df.merge`](https://pandas.pydata.org/pandas-docs/stable/user_guide/merging.html) to bring holiday information."
	`496`	+ "Hint: use [`df.merge`](https://pandas.pydata.org/pandas-docs/stable/user_guide/merging.html) to bring holiday information.\n",
	`497`	`+ "\n",`
	`498`	+ "Note: If you have prepared the dataset with `--small` argument or set the `DASK_TUTORIAL_SMALL` environment variable to `True`, you might see only a couple of holidays. This is because the small dataset contains a limited number of rows."
`497`	`499`	`]`
`498`	`500`	`},`
`499`	`501`	`{`