changed: add tips, rewording, and tidy up

docs/foundations/module-01/README.md

@@ -31,6 +31,10 @@ In conclusion, adopting DevOps enhances collaboration between teams, enhances fe
 - It's also important to know that DevOps has many [implementations and topologies](https://web.devopstopologies.com/), and that's why it's hard to land your first job as a DevOps Engineer (because that could mean many things! Sometimes that title makes sense, and some other times it's misleading!).
 - Finally, just remember that DevOps is not about Dev doing Ops work or vice versa; it's actually a `paradigm shift` (i.e., you need to think differently).
 
+:::tip
+Some topics in this module may seem new or theoretical, but don't worry! Keep reading and learning about those topics, and you will see them in action in this roadmap.
+:::
+
 ### Resources {#11-resources}
 
 - [What is DevOps? - GitLab](https://about.gitlab.com/topics/devops/): A good starting point for an overview of the technical aspects of the DevOps.
@@ -59,7 +63,7 @@ The Software Development Life Cycle (SDLC) is a process or set of phases that gu
 ## 1.3 Software Production - Agile Software Development
 
 <p align="center">
-  <img title="Shif-Left and Shfit-Right Quality Models" alt="Shif-Left and Shfit-Right Quality Models" border="0" width="90%" src="/img/shift-left-and-shift-right-models.png"/>
+  <img title="Different Types of Quality Models" alt="Shif-Left and Shfit-Right Quality Models" border="0" width="90%" src="/img/quality-models.png"/>
 </p>
 
 ### What you need to know {#13-what-you-need-to-know}

docs/foundations/module-02/README.md

@@ -17,6 +17,10 @@ import QuizData from './module-02-quiz.json';
 
 ## 2.1 Code - Python Fundamentals
 
+:::tip
+If you come from a development background, you can use any language you know. Python or Golang are still recommended.
+:::
+
 <img class="img-right" align="right" width="25%" src="/img/topics/code.png"></img>
 
 ### What you need to know {#21-what-you-need-to-know}

docs/foundations/module-05/README.md

@@ -89,7 +89,7 @@ import QuizData from './module-05-quiz.json';
   - **Domain-specific language (DSL)**: There are two approaches to writing IaC: either using tools that utilize DSLs like Terraform and Crossplane or using tools that utilize programming languages like Pulumi and AWS CDK.
 - Without going into much detail about [what's declarative and what's not](https://leebriggs.co.uk/blog/2022/07/20/nobody-knows-what-declarative-is) ... you should look for tools that allow you to state how you want your infrastructure to look like [Terraform](https://www.terraform.io/) or [Crossplane](https://www.crossplane.io/) and use DSL for simplicity.
 - In all cases, using imperative scripts in any language (Bash, Python, etc.) is not recommended; that's not the ideal IaC and will hit you hard in the future when you try to automate the IaC via GitOps (it will be covered in the following modules).
-- Finally, in the current container era, Configuration Management tools like Ansible and SaltStack are less used in favor of using a container ecosystem (in this roadmap, we will not cover them).
+- Finally, in the current container era, Configuration Management tools like Ansible and SaltStack are less and less used in favor of a container ecosystem. In this roadmap, we will not cover them; learn one of them when you need it (Ansible is highly recommended).
 
 ### Resources {#54-resources}