Improve Documentation for Scaledown on Aborted Rollout

Improves understanding of how scaling down behaves depending on different configurations.
 • Canary with traffic routing + setCanaryScale does not scales down immediately when `abortScaleDownDelaySeconds = 0`.
 • Canary with traffic routing + setCanaryScale scales down after some delay of N second `abortScaleDownDelaySeconds = N`.

Signed-off-by: Bishal Thapa <[email protected]>

Author: bishalthapa-t

docs/features/scaledown-aborted-rs.md

@@ -6,13 +6,15 @@ The following table summarizes the behavior under combinations of rollout strate
 `abortScaleDownDelaySeconds = nil` is the default, which means in v1.1 across all rollout strategies, the new replicaset
 is scaled down in 30 seconds on abort by default.
 
-|                                    strategy |         v1.0 behavior         | abortScaleDownDelaySeconds |         v1.1 behavior         |
-|--------------------------------------------:|:-----------------------------:|:--------------------------:|:-----------------------------:|
-|                                  blue-green | does not scale down           | nil                        | scales down after 30 seconds  |
-|                                  blue-green | does not scale down           | 0                          | does not scale down           |
-|                                  blue-green | does not scale down           | N                          | scales down after N seconds   |
-|                                basic canary | rolling update back to stable | N/A                        | rolling update back to stable |
-|                   canary w/ traffic routing | scales down immediately       | nil                        | scales down after 30 seconds  |
-|                   canary w/ traffic routing | scales down immediately       | 0                          | does not scale down           |
-|                   canary w/ traffic routing | scales down immediately       | N                          | scales down after N seconds   |
-| canary w/ traffic routing  + setCanaryScale | does not scale down (bug)     | *                          | should behave like  canary w/ traffic routing     |
+|                                    strategy |         v1.0 behavior         | abortScaleDownDelaySeconds |                 v1.1 behavior                 |
+|--------------------------------------------:|:-----------------------------:|:--------------------------:|:---------------------------------------------:|
+|                                  blue-green | does not scale down           | nil                        |         scales down after 30 seconds          |
+|                                  blue-green | does not scale down           | 0                          |              does not scale down              |
+|                                  blue-green | does not scale down           | N                          |          scales down after N seconds          |
+|                                basic canary | rolling update back to stable | N/A                        |         rolling update back to stable         |
+|                   canary w/ traffic routing | scales down immediately       | nil                        |         scales down after 30 seconds          |
+|                   canary w/ traffic routing | scales down immediately       | 0                          |            scales down immediately            |
+|                   canary w/ traffic routing | scales down immediately       | N                          |          scales down immediately              |
+| canary w/ traffic routing  + setCanaryScale | scales down immediately       | 0                          |              does not scale down              |
+| canary w/ traffic routing  + setCanaryScale | scales down immediately       | N                          |          scales down after N seconds          |
+| canary w/ traffic routing  + setCanaryScale | does not scale down (bug)     | *                          | should behave like  canary w/ traffic routing |