Fix DLL and namespace in .NET CSOM example (SharePoint#2208)

Author: alarkvell

docs/general-development/using-the-sharepoint-search-query-apis.md

@@ -58,7 +58,7 @@ Search in SharePoint includes a client object model that enables access to searc
 
 
 
-For the .NET managed CSOM, get a **ClientContext** instance (located in the [Microsoft.SharePoint.Client](https://msdn.microsoft.com/library/Microsoft.SharePoint.Client.aspx) namespace in the Microsoft.SharePoint.Client.dll). Then use the object model in the **Microsoft.SharePoint.Search.Client.Query** namespace in the Microsoft.SharePoint.Search.Client.dll.
+For the .NET managed CSOM, get a **ClientContext** instance (located in the [Microsoft.SharePoint.Client](https://msdn.microsoft.com/library/Microsoft.SharePoint.Client.aspx) namespace in the Microsoft.SharePoint.Client.dll). Then use the object model in the **Microsoft.SharePoint.Client.Search.Query** namespace in the Microsoft.SharePoint.Client.Search.dll.