Clarify host.json in Azure Functions

@ggailey777 - there was an issue opened recently asking for clarification on how binding-related host.json properties are applied to a function app with multiple functions of a given binding: Azure/azure-functions-host#5417

I also noticed that the local.setting.json section was a little misleading - local.settings.json is the local equivalent of app settings, and not host.json.

Would love help with wording :)!

Author: mhoeger

articles/azure-functions/functions-host-json.md

@@ -16,9 +16,9 @@ The *host.json* metadata file contains global configuration options that affect
 > [!NOTE]
 > This article is for Azure Functions 2.x and later versions.  For a reference of host.json in Functions 1.x, see [host.json reference for Azure Functions 1.x](functions-host-json-v1.md).
 
-Other function app configuration options are managed in your [app settings](functions-app-settings.md).
+Other function app configuration options are managed in your [app settings](functions-app-settings.md) (for deployed apps) or your [local.settings.json](functions-run-local.md#local-settings-file) file (for local development).
 
-Some host.json settings are only used when running locally in the [local.settings.json](functions-run-local.md#local-settings-file) file.
+Configurations in host.json related to bindings are applied equally to each function in the function app. 
 
 ## Sample host.json file