Adding redirection

Author: SnehaGunda

.openpublishing.redirection.json

@@ -7178,6 +7178,11 @@
             "redirect_url": "https://docs.microsoft.com/azure/cosmos-db/faq#moving-to-cosmos-db",
             "redirect_document_id": false
         },
+        {
+            "source_path": "articles/cosmos-db/20-days-of-tips.md",
+            "redirect_url": "https://docs.microsoft.com/azure/cosmos-db/",
+            "redirect_document_id": false
+        },
         {
             "source_path": "articles/cosmos-db/graph-sdk-dotnet.md",
             "redirect_url": "https://docs.microsoft.com/azure/cosmos-db/create-sql-api-dotnet",