Typo fix - update to "Azure functions hosting options" and "improve the performance and reliability of Azure functions" articles

* Change (5 TB) to (5 GB) of consumption plan storage in (functions-limits.md) referenced by Azure functions hosting options article.
* Change (... tasks, callbacks, threads, processes, or tasks, they must complete...) to (... processes, or tasks, they must complete...) in improve the performance and reliability of Azure functions article. This removes repetition of (task).

Author: mahab339

articles/azure-functions/performance-reliability.md

@@ -22,7 +22,7 @@ Whenever possible, refactor large functions into smaller function sets that work
 
 ## Make sure background tasks complete 
 
-When your function starts any tasks, callbacks, threads, processes, or tasks, they must complete before your function code returns. Because Functions doesn't track these background threads, site shutdown can occur regardless of background thread status, which can cause unintended behavior in your functions.
+When your function starts any tasks, callbacks, threads, processes, they must complete before your function code returns. Because Functions doesn't track these background threads, site shutdown can occur regardless of background thread status, which can cause unintended behavior in your functions.
 
 For example, if a function starts a background task and returns a successful response before the task completes, the Functions runtime considers the execution as having completed successfully, regardless of the result of the background task. If this background task is performing essential work, it may be preempted by site shutdown, leaving that work in an unknown state.
 

includes/functions-limits.md

@@ -19,7 +19,7 @@ ms.author: glenga
 | Function apps per plan |100 |100 |unbounded<sup>4</sup> | unbounded | unbounded |
 | [App Service plans](../articles/app-service/overview-hosting-plans.md) | 100 per [region](https://azure.microsoft.com/global-infrastructure/regions/) |100 per resource group |100 per resource group | - | - |
 | [Deployment slots](../articles/azure-functions/functions-deployment-slots.md) per app<sup>10</sup> | 2 | 3 | 1-20<sup>9</sup> | 20 | n/a |
-| Storage<sup>5</sup> |5 TB |250 GB |50-1000 GB | 1 TB | n/a |
+| Storage<sup>5</sup> |5 GB |250 GB |50-1000 GB | 1 TB | n/a |
 | Custom domains per app</a> |500<sup>6</sup> |500 |500 | 500 | n/a |
 | Custom domain [SSL support](../articles/app-service/configure-ssl-bindings.md) |unbounded SNI SSL connection included | unbounded SNI SSL and 1 IP SSL connections included |unbounded SNI SSL and 1 IP SSL connections included | unbounded SNI SSL and 1 IP SSL connections included | n/a |