Add links to new functions

Author: MikeRayMSFT

docs/sql-server/what-s-new-in-sql-server-2022.md

@@ -114,7 +114,7 @@ The following sections provide an overview of these features.
 |:---|:---|
 | CREATE STATISTICS | Adds [AUTO_DROP option](../relational-databases/statistics/statistics.md#auto_drop-option)<br/><br/>Automatic statistics with low priority.|
 | Time series functions | You can store and analyze data that changes over time, using time-windowing, aggregation, and filtering capabilities.<br/>- [DATE_BUCKET](../t-sql/functions/date-bucket-transact-sql.md)<br/>- [GENERATE_SERIES](../t-sql/functions/generate-series-transact-sql.md)<br/><br/>The following adds support to IGNORE NULLS and RESPECT NULLS:<br/>- [FIRST_VALUE](../t-sql/functions/first-value-transact-sql.md)<br/>- [LAST_VALUE](../t-sql/functions/last-value-transact-sql.md)|
-| JSON functions | - [ISJSON (Transact-SQL)](../t-sql/functions/functions.md)<br/>- [JSON_PATH_EXISTS (Transact-SQL)](../t-sql/functions/json-path-exists-transact-sql.md)<br/>- [JSON_OBJECT (Transact-SQL)](../t-sql/functions/functions.md)<br/>- [JSON_ARRAY (Transact-SQL)](../t-sql/functions/functions.md)
+| JSON functions | - [ISJSON (Transact-SQL)](../t-sql/functions/isjson-transact-sql.md)<br/>- [JSON_PATH_EXISTS (Transact-SQL)](../t-sql/functions/json-path-exists-transact-sql.md)<br/>- [JSON_OBJECT (Transact-SQL)](../t-sql/functions/json-object-transact-sql.md)<br/>- [JSON_ARRAY (Transact-SQL)](../t-sql/functions/json-array-transact-sql.md)|
 |SELECT ... WINDOW clause | Determines the partitioning and ordering of a rowset before the window function which uses the window in OVER clause is applied. See [SELECT (Transact-SQL)](../t-sql/queries/select-transact-sql.md).|
 | Resumable ALTER TABLE ADD CONSTRAINT | Support to pause, and resume a running ADD CONSTRAINT operation to perform it during maintenance windows. Resume such operation after failovers and system failures. Execute such operation on a large table despite the small log size available.
 |T-SQL functions |- [GREATEST (Transact-SQL)](../t-sql/functions/logical-functions-greatest-transact-sql.md)<br/>- [LEAST (Transact-SQL)](../t-sql/functions/logical-functions-least-transact-sql.md)<br/>- [STRING_SPLIT (Transact-SQL)](../t-sql/functions/string-split-transact-sql.md).|