Updated NuGet package name

- fixes SharePoint#2427

Author: andrewconnell

docs/solution-guidance/Getting-Started-with-building-Azure-WebJobs-for-your-Office365-sites.md

@@ -29,7 +29,7 @@ If you’re using Visual Studio, the NuGet package manager dialog may look sligh
 
 1. Go to **Tools** > **NuGet Package Manager** > **Manage NuGet Packages for Solution**, and search for **App for SharePoint**.
 
-2. Install the package called **AppForSharePointWebToolkit**.
+2. Install the package called **AppForSharePointOnlineWebToolkit**.
 
 3. The toolkit installs the required helper classes for working with the SharePoint client-side object model (CSOM).