Fix inconsistent usage of 'results' and 'records' in read-json.md (#1…

…5766)

* Fix inconsistent usage of 'results' and 'records' in `docs/cudf/source/user_guide/io/read-json.md`

Authors:
  - David Gardner (https://github.com/dagardner-nv)
  - Vyas Ramasubramani (https://github.com/vyasr)

Approvers:
  - Bradley Dice (https://github.com/bdice)
  - Nghia Truong (https://github.com/ttnghia)

URL: #15766

docs/cudf/source/user_guide/io/read-json.md

@@ -218,11 +218,11 @@ reads a JSON object as a single line and then extracts the
 # first read the JSON object with line=True
 >>> df = cudf.read_json(j, lines=True)
 >>> df
-             metadata                                            records
+             metadata                                            results
 0  {'vehicle': 'car'}  [{'id': 0, 'distance': 1.2}, {'id': 1, 'distan...
 
-# then explode the 'records' column
->>> df = df['records'].explode().struct.explode()
+# then explode the 'results' column
+>>> df = df['results'].explode().struct.explode()
 >>> df
    id  distance
 0   0       1.2