DOC: Link to table schema and remove reference to internal API (#33791)

Author: bharatr21

pandas/io/json/_table_schema.py

@@ -211,7 +211,9 @@ def build_table_schema(data, index=True, primary_key=None, version=True):
 
     Notes
     -----
-    See `_as_json_table_type` for conversion types.
+    See `Table Schema
+    <https://pandas.pydata.org/docs/user_guide/io.html#table-schema>`__ for
+    conversion types.
     Timedeltas as converted to ISO8601 duration format with
     9 decimal places after the seconds field for nanosecond precision.