The script correctly provisions and configures an Azure Web App by following a logical sequence of commands:

1. az appservice plan create: This command first creates an App Service plan. The plan defines the location, features, cost, and compute resources (like the FREE SKU) that will be shared by the web apps running on it.
2. az webapp create: Next, this command creates the actual web app container. It requires the --plan parameter to associate the new web app with the previously created App Service plan.
3. az webapp deployment source config: Finally, this command configures the deployment source for the web app. The --repo-url and --branch parameters point to the specific GitHub repository, enabling continuous deployment from the specified source.

az appservice plan create:

Microsoft Azure CLI Documentation, az appservice plan create. This document confirms the usage of parameters like --name, --resource-group, and --sku to define and create a new App Service plan.

az webapp create:

Microsoft Azure CLI Documentation, az webapp create. The official documentation specifies that creating a web app requires a --plan argument to link it to an existing App Service plan.

az webapp deployment source config:

Microsoft Azure CLI Documentation, az webapp deployment source config. This reference details the command used to manage a web app's deployment from source control, including the required parameters --repo-url and --branch for configuring a Git repository.