fix links

Author: ggailey777

articles/azure-functions/TOC.yml

@@ -125,7 +125,7 @@
   - name: Diagnostics
     href: ../app-service/overview-diagnostics.md?toc=%2fazure%2fazure-functions%2ftoc.json
   - name: Consumption plan costs
-    href: functions-consumption-costing.md  
+    href: functions-consumption-costs.md  
   - name: Performance considerations
     href: functions-best-practices.md 
   - name: Functions Proxies

articles/azure-functions/functions-scale.md

@@ -63,7 +63,7 @@ The Consumption plan is the default hosting plan and offers the following benefi
 
 Function apps in the same region can be assigned to the same Consumption plan. There's no downside or impact to having multiple apps running in the same Consumption plan. Assigning multiple apps to the same consumption plan has no impact on resilience, scalability, or reliability of each app.
 
-To learn more about how to estimate costs when running in a Consumption plan, see [Understanding Consumption plan costs](functions-consumption-costing.md).
+To learn more about how to estimate costs when running in a Consumption plan, see [Understanding Consumption plan costs](functions-consumption-costs.md).
 
 ## <a name="premium-plan"></a>Premium plan (preview)