Add 'Scheduler' tag to blog tags configuration

Added a new tag for 'Scheduler' with relevant details.

Author: wdarko1

website/blog/tags.yml

@@ -302,6 +302,10 @@ scaling:
   permalink: /scaling
   description: Horizontal and vertical scaling strategies, autoscaler tuning, and capacity planning.
 
+scheduler:
+  label: Scheduler
+  permalink: /scheduler
+  description: Scheduling workloads and managing scheduling constraints on AKS.
 security:
   label: Security
   permalink: /security