added new entries to TOC

Author: markingmyname

…roximate-percentile-cont-transact-sql.md …s/approx-percentile-cont-transact-sql.mddocs/t-sql/functions/approximate-percentile-cont-transact-sql.md renamed to docs/t-sql/functions/approx-percentile-cont-transact-sql.md docs/t-sql/functions/approximate-percentile-cont-transact-sql.md renamed to docs/t-sql/functions/approx-percentile-cont-transact-sql.md

@@ -1,6 +1,6 @@
 ---
 title: APPROX_PERCENTILE_CONT (Transact-SQL)
-description: "APPROXIMATE PERCENTILE CONT (Transact-SQL)"
+description: A function that returns an approximate interpolated value from the set of values in a group based on percentile value and sort specification.
 ms.prod: sql
 ms.technology: t-sql
 ms.topic: reference

…roximate-percentile-disc-transact-sql.md …s/approx-percentile-disc-transact-sql.mddocs/t-sql/functions/approximate-percentile-disc-transact-sql.md renamed to docs/t-sql/functions/approx-percentile-disc-transact-sql.md docs/t-sql/functions/approximate-percentile-disc-transact-sql.md renamed to docs/t-sql/functions/approx-percentile-disc-transact-sql.md

@@ -1,6 +1,6 @@
 ---
 title: APPOX_PERCENTILE_DISC (Transact-SQL)
-description: "APPROXIMATE PERCENTILE DISC (Transact-SQL)"
+description: A function that returns the value from the set of values in a group based on the provided percentile and sort specification.
 ms.prod: sql
 ms.technology: t-sql
 ms.topic: reference

docs/toc.yml

@@ -16114,6 +16114,10 @@ items:
         items:
         - name: APPROX_COUNT_DISTINCT
           href: t-sql/functions/approx-count-distinct-transact-sql.md
+        - name: APPROX_PERCENTILE_CONT
+          href: t-sql/functions/approx-percentile-cont-transact-sql.md
+        - name: APPROX_PERCENTILE_DIST
+          href: t-sql/functions/approx-percentile-cont-transact-sql.md
         - name: AVG
           href: t-sql/functions/avg-transact-sql.md
         - name: CHECKSUM_AGG