fixed broken links

Author: spelluru

articles/lab-services/classroom-labs/class-type-deep-learning-natural-processing.md

@@ -28,7 +28,7 @@ After you create the lab account, enable following settings in the lab account:
 
 | Lab account setting | Instructions |
 | ----------- | ------------ |  
-| Marketplace images | Enable the Data Science Virtual Machine for Linux (Ubuntu) image for use within your lab account.  See the following articles for instructions: [Specify marketplace images available to lab creators](tutorial-setup-lab-account.md#specify-marketplace-images-available-to-lab-creators). | 
+| Marketplace images | Enable the Data Science Virtual Machine for Linux (Ubuntu) image for use within your lab account.  See the following articles for instructions: [Specify marketplace images available to lab creators](how-to-configure-lab-accounts.md#specify-marketplace-images-available-to-lab-creators). | 
 
 Follow [this tutorial](tutorial-setup-classroom-lab.md) to create a new lab and apply the following settings:
 

articles/lab-services/classroom-labs/class-type-jupyter-notebook.md

@@ -26,7 +26,7 @@ To set up this lab, you need an Azure subscription and lab account to get starte
 
 ### Lab Account Settings
 
-Enable the settings described in the table below for the lab account. For more information about how to enable marketplace images, see [specify marketplace images available to lab creators](tutorial-setup-lab-account.md#specify-marketplace-images-available-to-lab-creators).
+Enable the settings described in the table below for the lab account. For more information about how to enable marketplace images, see [specify marketplace images available to lab creators](how-to-configure-lab-accounts.md#specify-marketplace-images-available-to-lab-creators).
 
 | Lab account setting | Instructions |
 | ------------------- | ------------ |

articles/lab-services/classroom-labs/class-type-shell-scripting-linux.md

@@ -29,7 +29,7 @@ After you create the lab account, enable following settings in the lab account:
 
 | Lab account setting | Instructions |
 | ----------- | ------------ |  
-| Marketplace images | Enable the [Ubuntu Server 18.04 LTS](https://azuremarketplace.microsoft.com/marketplace/apps/canonical.0001-com-ubuntu-server-bionic) image for use within your lab account. For more information, see [Specify Marketplace images available to lab creators](tutorial-setup-lab-account.md#specify-marketplace-images-available-to-lab-creators) | 
+| Marketplace images | Enable the [Ubuntu Server 18.04 LTS](https://azuremarketplace.microsoft.com/marketplace/apps/canonical.0001-com-ubuntu-server-bionic) image for use within your lab account. For more information, see [Specify Marketplace images available to lab creators](how-to-configure-lab-accounts.md#specify-marketplace-images-available-to-lab-creators) | 
 
 Follow [this tutorial](tutorial-setup-classroom-lab.md) to create a new lab and apply the following settings: