update usage stats spans image (#10404)

* update usage stats spans image

* Update manage-transaction-quota.mdx

Author: vivianyentran

docs/pricing/quotas/img/usage-stats-spans.png

@@ -24,7 +24,7 @@ This page is accessible to all members of your organization, so Owners in your S
 
 The [Usage Stats](/product/stats/#usage-stats) tab displays details about the total amount of data Sentry has received across your entire organization for up to 90 days. The page breaks down the events (by project) into three categories: _accepted_, _dropped_, or _filtered_. Only accepted events affect your quota:
 
-![Usage Stats page showing transactions](./img/usage-stats-transactions.png)
+![Usage Stats page showing spans](./img/usage-stats-spans.png)
 
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