Signed-off-by: Ziqi Zhao <[email protected]>

Fix the mistakes in the "StatefulSet Basics"

In the section "Updating StatefulSets", when the update strategy is OnDelete and the web-0 pod is updated by deleting it manually.
Then the web-1 and web-2 should still have the original image. But in the current version, the article says that the web-0 and web-1
still have the original image.

Author: fatsheep9146

docs/tutorials/stateful-application/basic-stateful-set.md

@@ -499,7 +499,7 @@ web-1   gcr.io/google_containers/nginx-slim:0.8
 web-2   gcr.io/google_containers/nginx-slim:0.8
 {% endraw %}```
 
-`web-0` has had its image updated, but `web-0` and `web-1` still have the original 
+`web-0` has had its image updated, but `web-1` and `web-2` still have the original 
 image. Complete the update by deleting the remaining Pods.
 
 ```shell