Update pstn-pricing.md

Author: krkutser

articles/communication-services/concepts/pstn-pricing.md

@@ -143,7 +143,7 @@ All prices shown below are in USD.
 |Number type   |To make calls*   |To receive calls|
 |--------------|-----------|------------|
 |Geographic     |Starting at USD 0.0160/min       |USD 0.0100/min        |
-|Toll-free |Starting at USD 0.0160.016/min   |USD 0.1100/min |
+|Toll-free      |Starting at USD 0.0160/min       |USD 0.1100/min |
 \* For destination-specific pricing for making outbound calls, refer to details [here](https://github.com/Azure/Communication/blob/master/pricing/communication-services-pstn-rates.csv)
 
 ## Spain telephony offers