moves tag-aware sharding concept page into sharding behavior section

Author: schmalliso

source/includes/toc-sharded-cluster-data.yaml

@@ -23,11 +23,6 @@ file: /tutorial/clear-jumbo-flag
 description: |
   Clear *jumbo* flag from a shard.
 ---
-file: /core/tag-aware-sharding
-description: |
-  Tags associate specific ranges  of :term:`shard key` values with specific shards for
-  use in managing deployment patterns.
----
 file: /tutorial/administer-shard-tags
 description: |
   Use tags to associate specific ranges of shard key values with specific

source/includes/toc-sharded-cluster-operations.yaml

@@ -11,4 +11,9 @@ file: /core/sharded-cluster-query-router
 description: |
   The cluster's routers, or ``mongos`` instances, send reads and writes
   to the relevant shard or shards.
+---
+file: /core/tag-aware-sharding
+description: |
+  Tags associate specific ranges of :term:`shard key` values with
+  specific shards for use in managing deployment patterns.
 ...