Update tutorial-lamp-stack.md

Acrolinx edits

Author: mattmcinnes

articles/virtual-machines/linux/tutorial-lamp-stack.md

@@ -31,7 +31,7 @@ This setup is for quick tests or proof of concept. For more on the LAMP stack, i
 
 This tutorial uses the CLI within the [Azure Cloud Shell](../../cloud-shell/overview.md), which is constantly updated to the latest version. To open the Cloud Shell, select **Try it** from the top of any code block.
 
-If you choose to install and use the CLI locally, this tutorial requires that you are running the Azure CLI version 2.0.30 or later. Run `az --version` to find the version. If you need to install or upgrade, see [Install Azure CLI]( /cli/azure/install-azure-cli).
+If you choose to install and use the CLI locally, this tutorial requires that you're running the Azure CLI version 2.0.30 or later. Run `az --version` to find the version. If you need to install or upgrade, see [Install Azure CLI]( /cli/azure/install-azure-cli).
 
 ## Create a resource group
 
@@ -47,7 +47,7 @@ az group create --name myResourceGroup --location eastus
 
 Create a VM with the [az vm create](/cli/azure/vm) command. 
 
-The following example creates a VM named *myVM* and creates SSH keys if they do not already exist in a default key location. To use a specific set of keys, use the `--ssh-key-value` option. The command also sets *azureuser* as an administrator user name. You use this name later to connect to the VM. 
+The following example creates a VM named *myVM* and creates SSH keys if they don't already exist in a default key location. To use a specific set of keys, use the `--ssh-key-value` option. The command also sets *azureuser* as an administrator user name. You use this name later to connect to the VM. 
 
 ```azurecli-interactive
 az vm create \
@@ -109,7 +109,7 @@ Run the following command to update Ubuntu package sources and install Apache, M
 sudo apt update && sudo apt install lamp-server^
 ```
 
-You are prompted to install the packages and other dependencies. This process installs the minimum required PHP extensions needed to use PHP with MySQL.  
+You're prompted to install the packages and other dependencies. This process installs the minimum required PHP extensions needed to use PHP with MySQL.  
 
 ## Verify Apache
 
@@ -139,7 +139,7 @@ sudo mysql_secure_installation
 
 You can optionally set up the Validate Password Plugin (recommended). Then, set a password for the MySQL root user, and configure the remaining security settings for your environment. We recommend that you answer "Y" (yes) to all questions.
 
-If you want to try MySQL features (create a MySQL database, add users, or change configuration settings), login to MySQL. This step is not required to complete this tutorial.
+If you want to try MySQL features (create a MySQL database, add users, or change configuration settings), login to MySQL. This step isn't required to complete this tutorial.
 
 ```bash
 sudo mysql -u root -p