Update max worker limit details and support contact info

Clarified the maximum worker limit allocation based on account balance and updated the wording for contacting support.

Author: muhsinking

serverless/workers/overview.mdx

@@ -56,9 +56,16 @@ To debug issues in production, you can access [worker logs](/serverless/developm
 
 ## Max worker limit
 
-By default, a single Runpod account can have a maximum of 5 workers (flex + active combined) allocated across all endpoints. You can automatically increase this number if you have a sufficiently high account balance, starting at \$100 for 10 workers up to \$900 for 60 workers.
+By default, each Runpod account can allocate a maximum of 5 workers (flex + active combined) across all endpoints. If your account balance exceeds a certain threshold, you can increase this limit:
 
-If your workload requires additional capacity beyond 60 workers, you can [contact support](https://www.runpod.io/contact) to increase this limit.
+- \$100 balance: 10 max workers
+- \$200 balance: 20 max workers
+- \$300 balance: 30 max workers
+- \$500 balance: 40 max workers
+- \$700 balance: 50 max workers
+- \$900 balance: 60 max workers
+
+If your workload requires additional capacity beyond 60 workers, [contact our support team](https://www.runpod.io/contact).
 
 ## Next steps