Add entries for renamed BizTalk migration docs

Author: ecfan

articles/logic-apps/.openpublishing.redirection.logic-apps.json

@@ -1,5 +1,15 @@
 {
     "redirections": [
+        {
+            "source_path_from_root": "/articles/logic-apps/biztalk-server-azure-integration-services-migration-approaches.md",
+            "redirect_url": "/azure/logic-apps/biztalk-server-azure-logic-apps-migration-approaches",
+            "redirect_document_id": false
+        },
+        {
+            "source_path_from_root": "/articles/logic-apps/biztalk-server-to-azure-integration-services-overview.md",
+            "redirect_url": "/azure/logic-apps/biztalk-server-to-azure-logic-apps-overview",
+            "redirect_document_id": false
+        },
         {
             "source_path_from_root": "/articles/logic-apps/connect-virtual-network-vnet-isolated-environment-overview.md",
             "redirect_url": "/azure/logic-apps/single-tenant-overview-compare",