docs: change terminology from parts to labs

Author: vburckhardt

Diff for: docs/README.md

@@ -14,17 +14,17 @@ The lab also introduces some concepts and background to help you to better get t
 
 ## Lab structure
 
-The lab has two parts. The first part is a stepping stone to the second part.
+Two labs are available. The two labs are independent. However, the first lab is a stepping stone in term of knowledge to the second lab.
 
-In [part 1](./part1/00-objectives), you take the perspective of a cloud infrastructure engineer:
+In [Lab 1](./part1/00-objectives), you take the perspective of a cloud infrastructure engineer:
 
 1. Use the [Landing Zone Deployable Architecture](https://cloud.ibm.com/docs/secure-infrastructure-vpc?topic=secure-infrastructure-vpc-overview) to automatically deploy a secure VPC-based topology in an IBM Cloud account.
 2. Manually customize the deployed infrastructure in the account in the following ways:
     a. Provide operator access through a "jump box" VSI.
     b. Install an Apache server in one of the workload VPCs that serves the web pages.
     c. Expose the web pages that are served by the Apache server through a public VPC load balancer.
 
-In [part 2](./part2/00-objectives), you are a DevOps/automation engineer:
+In [Lab 2](./part2/00-objectives), you are a DevOps/automation engineer:
 
-1. Automate the manual steps in part 1.
+1. Automate all the manual steps in lab 1.
 2. Package, and share the automation with other users as a **Deployable architecture** through a private IBM Cloud catalog. This packaging in a private catalog helps specific users to find and consume your automation.

Diff for: docs/part1/00-objectives.md

@@ -1,6 +1,6 @@
-# Part 1: End-to-end deployment of a sample web application on a secure VPC topology
+# Lab 1: End-to-end deployment of a sample web application on a secure VPC topology
 
-In part 1, you provision a secure VPC-based topology that is aligned with the **VSI on VPC landing zone** deployable architecture, as shown in the following diagram.
+In lab 1, you provision a secure VPC-based topology that is aligned with the **VSI on VPC landing zone** deployable architecture, as shown in the following diagram.
 
 ![](https://raw.githubusercontent.com/terraform-ibm-modules/terraform-ibm-landing-zone/main/reference-architectures/vsi-vsi.drawio.svg 'size=60%' )
 

Diff for: docs/part2/00-objectives.md

@@ -1,5 +1,5 @@
-# Part 2: Automating deployment, and sharing through a private IBM Cloud Catalog
+# Lab 2: Automating deployment, and sharing through a private IBM Cloud Catalog
 
-Part 1 of the lab shows how you can leverage existing landing-zone automation to deploy most of the topology, and then customize and deploy on top of that infrastructure.
+Lab 1 shows how you can leverage existing landing-zone automation to deploy most of the topology, and then customize and deploy on top of that infrastructure.
 
 The purpose of part 2 is to show of the manual steps in part 1 can be fully automated. Part 2 will also show how the fully automated custom solution can be shared with other users in your enterprise through the [IBM Cloud Catalog](https://cloud.ibm.com/catalog).

Diff for: docs/sidebar.md

@@ -3,13 +3,13 @@
   - [🌍 VPC landing zone](./about/20-vpc-landing-zone.md)
   - [🏗️ Deployable architectures](./about/30-deployable-arch)
   - [📚 IBM Cloud projects](./about/40-projects.md)
-- [📂 Part 1 - End-to-end deployment](./part1/00-objectives.md)
+- [📂 Lab 1 - End-to-end deployment](./part1/00-objectives.md)
   - [🚀 Deploy Landing Zone VSI pattern](./part1/10-project.md)
   - [👤 Operator Access](./part1/20-operator-access.md)
   - [🌐 Install Apache server](./part1/30-apache-server.md)
   - [🌐 Expose a web application](./part1/40-expose-web-app.md)
   - [🎓 Go further](./part1/50-going-further.md)
-- [📂 Part 2 - Automate and share](./part2/00-objectives.md)
+- [📂 Lab 2 - Automate and share](./part2/00-objectives.md)
   - [🛠️ Customization options](./part2/10-customizing.md)
   - [🔍 Execute the custom topology](./part2/20-custom-module.md)
   - [🤖 Automate web app deployment](./part2/30-add-apache.md)