Added tag for 2025-04-01 in readme file

Author: Kanchan Joshi

specification/redisenterprise/resource-manager/readme.md

@@ -26,10 +26,19 @@ These are the global settings for the RedisEnterprise API.
 
 ``` yaml
 openapi-type: arm
-tag: package-2024-10
+tag: package-2025-04-01
 ```
 
 
+### Tag: package-2025-04-01
+
+These settings apply only when `--tag=package-2025-04-01` is specified on the command line.
+
+```yaml $(tag) == 'package-2025-04-01'
+input-file:
+  - Microsoft.Cache/stable/2025-04-01/redisenterprise.json
+```
+
 ### Tag: package-2024-10
 
 These settings apply only when `--tag=package-2024-10` is specified on the command line.