update examples

utils/examples.json

@@ -8,10 +8,10 @@
         "name": "Transformers",
         "value": "from transformers import AutoTokenizer, AutoModelForSequenceClassification\n\n# build a BERT classifier",
         "length": 48
-    }
+    },
     {
         "name": "Count words",
-        "value": "def count_words(filename):\n    \"\"\"Count the number of occurrences of each word in the file\"\"\""
+        "value": "def count_words(filename):\n    \"\"\"Count the number of occurrences of each word in the file\"\"\"",
         "length": 60
     },
     {
@@ -27,12 +27,12 @@
     },
     {
         "name": "Pizza Problem",
-        "value": "def exercise():\n    \"\"\"Marie ordered one chicken meal that costs 12 dollars, and some boxes of pizza. Marie paid a total of 44 dollars. How many boxes of pizza did Marie order if each box costs 8 dollars?\"\"\",
+        "value": "def exercise():\n    \"\"\"Marie ordered one chicken meal that costs 12 dollars, and some boxes of pizza. Marie paid a total of 44 dollars. How many boxes of pizza did Marie order if each box costs 8 dollars?\"\"\"",
         "length": 56
     },
     {
         "name": "Pandas",
         "value": "# load dataframe from csv\ndf = pd.read_csv(filename)\n\n# columns: \"age_group\", \"income\"\n# calculate average income per age group",
         "length": 16
-    },
+    }
 ]