docs: Updated the case of properties according to actual property name

Author: mksha

docs/features/specification.md

@@ -197,11 +197,11 @@ spec:
       # in order to give time for traffic providers to re-target the new pods.
       # This value is ignored with basic, replica-weighted canary without
       # traffic routing.
-      ScaleDownDelaySeconds: 30
+      scaleDownDelaySeconds: 30
 
       # Limits the number of old RS that can run at one time before getting
       # scaled down. Defaults to nil
-      ScaleDownDelayRevisionLimit: 2
+      scaleDownDelayRevisionLimit: 2
 
       # Background analysis to run during a rollout update. Skipped upon
       # initial deploy of a rollout. +optional
@@ -341,4 +341,4 @@ status:
 You can find examples of Rollouts at:
 
  * The [example directory](https://github.com/argoproj/argo-rollouts/tree/master/examples)
- * The [Argo Rollouts Demo application](https://github.com/argoproj/rollouts-demo)
+ * The [Argo Rollouts Demo application](https://github.com/argoproj/rollouts-demo)