updated the import docs section (#902)

Author: iamfortune

modules/ROOT/pages/upgrading.adoc

@@ -663,8 +663,8 @@ The xref:rest_api_admin.adoc#tag/Document/operation/get_keyspace-_raw-docid[raw]
 | *Sync Gateway 1.5 or above*
 `shared_bucket_access: true`
 2+a|
-After restarting Sync Gateway with the updated configuration file, the mobile metadata for existing documents is automatically migrated.
-To enable shared bucket on incoming documents, one Sync Gateway node in the cluster must also have the `import_docs: continuous` property in the configuration file.
+After you restart Sync Gateway with the updated configuration file, Sync Gateway automatically migrates the mobile metadata for existing documents when you set `import_docs` to `true`.
+To enable shared bucket access on incoming documents, set the `import_docs`: `true` property on at least one Sync Gateway node in the cluster.
 
 Enabling shared bucket access on your existing deployment is *not* reversible.
 It is recommended to test the upgrade on a staging environment before upgrading the production environment.
@@ -676,7 +676,7 @@ The known issue xref:release-notes.adoc#2-5-0[CBG-394], means that the upgrade w
 | *Sync Gateway 3.3 or later*
 `index.num_replicas: 2` (or n)
 2+|
-After restarting Sync Gateway with the updated configuration file, the number of Index Replicas in the Couchbase Server cluster is automatically updated.
+After you restart Sync Gateway with the updated configuration file, Sync Gateway automatically updates the number of Index Replicas in the Couchbase Server cluster.
 
 As of Sync Gateway 3.3, `num_index_replicas` still works, but this option has been deprecated in favor of `index.num_replicas`.
 |===