docs(tutorial): use newer sam cli template; update to py3.10 (#2167)

Author: heitorlessa

Diff for: docs/index.md

@@ -670,7 +670,7 @@ Compared with the [public Layer ARN](#lambda-layer) option, SAR allows you to ch
 ## Quick getting started
 
 ```bash title="Hello world example using SAM CLI"
-sam init --location https://github.com/aws-samples/cookiecutter-aws-sam-python
+sam init --app-template hello-world-powertools-python --name sam-app --package-type Zip --runtime python3.10 --no-tracing
 ```
 
 ## Features

Diff for: docs/tutorial/index.md

@@ -17,10 +17,14 @@ This tutorial progressively introduces Lambda Powertools core utilities by using
 Let's clone our sample project before we add one feature at a time.
 
 ???+ tip "Tip: Want to skip to the final project?"
-    Bootstrap directly via SAM CLI: `sam init --location https://github.com/aws-samples/cookiecutter-aws-sam-python`
+    Bootstrap directly via SAM CLI:
+
+    ```shell
+    sam init --app-template hello-world-powertools-python --name sam-app --package-type Zip --runtime python3.10 --no-tracing`
+    ```
 
 ```bash title="Use SAM CLI to initialize the sample project"
-sam init --runtime python3.9 --dependency-manager pip --app-template hello-world --name powertools-quickstart
+sam init --runtime python3.10 --dependency-manager pip --app-template hello-world --name powertools-quickstart
 ```
 
 ### Project structure