[Rules] Update create-dashboard.mdx

Customers are facing UI errors while attempting to create lists with source URLs  + query string. 

Query string is not supported in the Source URL. 

Per https://developers.cloudflare.com/rules/url-forwarding/bulk-redirects/reference/url-components/

Author: nenizera

src/content/docs/rules/url-forwarding/bulk-redirects/create-dashboard.mdx

@@ -37,6 +37,14 @@ However, the lists and rules only exist at the account level and every zone in t
 
 5. You can import a CSV file containing several URL redirects or enter URL redirects one at a time in the dashboard.
 
+:::note[Note]
+
+
+Query string is not supported in the **Source URL**. Find more on [Supported URL components](/rules/url-forwarding/bulk-redirects/reference/url-components/).
+
+
+:::
+
 <Details header="Import a CSV file">
 
 6. Drag and drop a CSV file containing URL redirects or select **browse** and select a CSV file. For more information on the file format, refer to [CSV file format](/rules/url-forwarding/bulk-redirects/reference/csv-file-format/).