Merge pull request NuGet#674 from mishra14/dev-anmishr-config

Adding context to nuget config command documentation

Author: Kraig Brockschmidt

docs/Tools/cli-ref-config.md

@@ -18,7 +18,7 @@ ms.reviewer:
 
 **Applies to:** all • **Supported versions**: all
 
-Gets or sets NuGet configuration values. For additional usage, see [Configuring NuGet Behavior](../consume-packages/configuring-nuget-behavior.md). For details on allowable key names, refer to the [NuGet config file reference](../Schema/nuget-config-file.md).
+Gets or sets NuGet configuration values in the user scope configuration file or a specified configuration file. The user scope configuration file is located at `%APPDATA%\NuGet\NuGet.Config` in Windows and at `~/.nuget/NuGet.Config` in Mac/Linux. For additional usage, see [Configuring NuGet Behavior](../consume-packages/configuring-nuget-behavior.md). For details on allowable key names, refer to the [NuGet config file reference](../Schema/nuget-config-file.md).
 
 ## Usage
 

docs/Tools/cli-ref-sources.md

@@ -18,7 +18,8 @@ ms.reviewer:
 
 **Applies to:** package consumption, publishing • **Supported versions:** all
 
-Manages the list of sources located in `%AppData%\NuGet\NuGet.Config` or the specified configuration file.
+Manages the list of sources located in the user scope configuration file or a specified configuration file. The user scope configuration file is located at `%APPDATA%\NuGet\NuGet.Config` in Windows and at `~/.nuget/NuGet.Config` in Mac/Linux.
+
 
 Note that the source URL for nuget.org is `https://api.nuget.org/v3/index.json`.