Semantic fixes in website/docs/r/virtual_hub_route_table.html.markdown (

#24389)

* Update application_gateway.html.markdown

Fix typo "A `probe` block support the following" -> "A `probe` block supports the following"

* Update windows_web_app.html.markdown

correct sticky_settings "exports" -> "supports" the following

* Update linux_web_app.html.markdown

Change "Arguments Reference" to "Argument Reference" to match standard

Correct "sticky_settings exports" to "supports" in Argument Reference section.

* Semantic fixes

Change 'Arguments Reference' to 'Argument Reference'
Correct "route block exports the following" to "supports the following"
Correct "An route block" to "A route block"

website/docs/r/virtual_hub_route_table.html.markdown

@@ -78,7 +78,7 @@ resource "azurerm_virtual_hub_route_table" "example" {
 }
 ```
 
-## Arguments Reference
+## Argument Reference
 
 The following arguments are supported:
 
@@ -92,7 +92,7 @@ The following arguments are supported:
 
 ---
 
-An `route` block exports the following:
+A `route` block supports the following:
 
 * `name` - (Required) The name which should be used for this route.