Update review submission button text

Author: ashis-baral

content/pull-requests/get-started/reviewing-pull-requests-quickstart.md

@@ -39,7 +39,7 @@ When you know the exact change you'd like, suggest it so the author can apply it
 
 Finish by submitting your review with a decision that tells the author what to do next.
 
-1. Click **Review changes**.
+1. Click **Submit review**.
 1. Add a summary comment.
 1. Select a decision, then click **Submit review**:
 
@@ -50,4 +50,4 @@ Finish by submitting your review with a decision that tells the author what to d
 ## Next steps
 
 * [AUTOTITLE](/pull-requests/concepts/giving-reviews)
-* [AUTOTITLE](/pull-requests/reference/pull-request-reviews)
+* [AUTOTITLE](/pull-requests/reference/pull-request-reviews)