Fix broken links in three topics

Author: jameshkramer

subscriptions/vscloud-billing-faq.md

@@ -42,7 +42,7 @@ You need to select an Azure subscription (which is a billing account) from a pre
 Because the name of the Azure subscription defaults to the type of billing account ("Pay-As-You-Go", "Enterprise Agreement", etc.), it is often clear if the
 Azure subscription is part of your Enterprise Agreement.
 
-Another approach is to attempt to visit the [Azure Enterprise Portal](http://ea.azure.com).  If you can reach it successfully, then you already have either
+Another approach is to attempt to visit the [Azure Enterprise Portal](https://ea.azure.com).  If you can reach it successfully, then you already have either
 the Enterprise Admin or the Account Owner role. Only Account Owners can set up new Azure billing accounts in an Enterprise Agreement. If you cannot access
 the Azure Enterprise Portal, then please inquire within your organization to find out who your Enterprise Admin is, and ask that person to add you as an
 Account Owner within the Azure Enterprise Portal.  If you are unable to find this person, you can [submit a support ticket](https://aka.ms/AzureEntSupport)

subscriptions/vscloud-overview.md

@@ -21,7 +21,7 @@ You can buy [Visual Studio Professional and Visual Studio Enterprise subscriptio
 * To bill your purchases, you need an [Azure subscription](https://azure.microsoft.com/pricing/purchase-options/). You can [sign up](https://portal.azure.com) before your first purchase or during your first purchase in the Visual Studio Marketplace.
 
 ## Who can buy Visual Studio cloud subscriptions?
-Anyone with [owner](https://docs.microsoft.com/azure/role-based-access-control/built-in-roles#owner), [service admin](https://docs.microsoft.com/azure/billing/billing-add-change-azure-subscription-administrator#change-the-service-administrator-for-an-azure-subscription), or [co-admin](https://docs.microsoft.com/azure/billing/billing-add-change-azure-subscription-administrator#add-or-change-co-administrator) access to the Azure subscription can purchase cloud subscriptions.
+Anyone with [owner](https://docs.microsoft.com/azure/role-based-access-control/built-in-roles#owner), [service admin](https://docs.microsoft.com/azure/billing/billing-add-change-azure-subscription-administrator#assign-a-user-as-an-administrator-of-a-subscription), or [co-admin](https://docs.microsoft.com/azure/billing/billing-add-change-azure-subscription-administrator#assign-a-user-as-an-administrator-of-a-subscription) access to the Azure subscription can purchase cloud subscriptions.
 
 ## How to buy cloud subscriptions
 

subscriptions/whats-new-in-subscriptions.md

@@ -14,7 +14,7 @@ We update the Subscription benefits package often to make it more useful to you.
 
 ## 2019 Q1 (January-March)
 
-### Maximum Usage added to [Subscriptions Administration portal](https://manage.visualstuido.com)
+### Maximum Usage added to [Subscriptions Administration portal](https://manage.visualstudio.com)
 A new feature in the Visual Studio subscriptions administration portal helps you track how many subscriptions you've purchased and assigned, and identifies the peak number of subscriptions of each level you've assigned, both within the past year and throughout the duration of your agreement(s). This can help you understand your current subscription usage and plan for future purchases. 
 
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