fix links.

Author: kenwith

sharepoint/docs-conceptual/overview.md

@@ -30,7 +30,7 @@ Before you can use the Add-SPShellAdmin cmdlet to grant permissions for users to
 
 **NOTE:** If these permissions are not satisfied, contact your Setup administrator or SQL Server administrator to request these permissions.
 
-For additional information about PowerShell permissions, see [Add-SPShellAdmin](Add-SPShellAdmin.md).
+For additional information about PowerShell permissions, see [Add-SPShellAdmin](../../sharepoint-ps/sharepoint-server/Add-SPShellAdmin.md).
 
 If you do not have membership in the **SharePoint_Shell_Access** role or **WSS_Admin_WPG** local group, use the **Add-SPShellAdmin** cmdlet to add the **WSS_Admin_WPG** group in all front-end web servers in the SharePoint farm and the **SharePoint_Shell_Access** role. If the SQL Server database does not have a **SharePoint_Shell_Access** role, the role is automatically created when you run the **Add-SPShellAdmin** cmdlet. After you run the **Add-SPShellAdmin** cmdlet, users can run SharePoint PowerShell cmdlets in a multiple-server farm environment.
 

sharepoint/docs-conceptual/sharepoint-online/introduction-sharepoint-online-management-shell.md

@@ -20,7 +20,7 @@ After you get familiar with SharePoint Online sites and users, try using SharePo
 
 To use SharePoint Online PowerShell commands, you must be a SharePoint Online global administrator.
 
-Before you can run SharePoint Online commands, you must install the SharePoint Online Management Shell module and connect to the SharePoint Online service. For more information, see [Connect SharePoint Online](Connect_SharePointOnline.md)
+Before you can run SharePoint Online commands, you must install the SharePoint Online Management Shell module and connect to the SharePoint Online service. For more information, see [Connect SharePoint Online](connect-sharepoint-online.md)