Update README.md

README.md

@@ -11,19 +11,19 @@ license: cc0-1.0
 dataset_info:
 - config_name: train
   features:
-  - name: Year
+  - name: year
     dtype: string
-  - name: Day
+  - name: day
     dtype: string
-  - name: Part
+  - name: part
     dtype: string
-  - name: Question
+  - name: question
     dtype: string
-  - name: Answer
+  - name: answer
     dtype: string
-  - name: Solution
+  - name: solution
     dtype: string
-  - name: Language
+  - name: language
     sequence: string
 ---
 # Advent of Code Dataset