Add reference uri to template deployment help

Author: vivsriaus

src/ResourceManager/Resources/Commands.Resources/Microsoft.Azure.Commands.Resources.dll-Help.xml

@@ -4690,6 +4690,7 @@ Resources</dev:code>
       <maml:para>An Azure resource is a user-managed Azure entity, such as a database server, database, website, virtual machine, or storage account. An Azure resource group is a collection of Azure resources that are deployed as a unit, such as the web site, database server, and databases that are required for a financial web site. A deployment uses a resource group template to add resource to a resource group and publish them so they are available in Azure.</maml:para>
       <maml:para>To add a resource group deployment, specify the name of an existing resource group and a resource group template, which is a JSON string that represents of a resource group for a complex cloud-based service, such as a web portal. The template includes parameter (placeholders) for required resources and configurable property values, likes names and sizes. You can find many templates in the Azure template gallery and you can create your own templates. </maml:para>
       <maml:para>You can also create a custom resource group template, either by typing in a text file  or by editing a gallery template. To use a custom template to create a resource group, use TemplateFile or TemplateUri parameters to supply the location and file name. Each template has different parameters for configurable properties. To specify values for the template parameters, use a JSON-formatted parameter file (TemplateParameterFile parameter) or a hash table of parameter names and values (TemplateParameterObject parameter). Or, use the template parameters that are added to the command dynamically as soon as you specify a template. To use the dynamic parameters, just type them in the command, or type a minus sign to indicate a parameter name (-) and then press the TAB key repeatedly to cycle through the available parameters. If you miss a required parameter, the cmdlet prompts you for the value. Template parameter values that are typed at the command line take precedence over values in a template parameter object or file.</maml:para>
+      <maml:para>For more information about deploying template, please refer https://azure.microsoft.com/en-us/documentation/articles/resource-group-template-deploy/</maml:para>
     </maml:description>
     <command:syntax>
       <command:syntaxItem>