updating wording for Copilot free licensing

Author: scubaninja

03-Introduction-to-GitHub-Copilot/README.md

@@ -18,7 +18,7 @@ Note: Although this module uses [Codespaces](https://github.com/codespaces), you
 -**Who this is for**: Developers, DevOps Engineers, Software development managers, Testers.
 -**What you'll learn**: How to install Copilot into a Codespace, accept suggestions from code, accept suggestions from comments.
 -**What you'll build**: Javascript files that will have code generated by Copilot AI for code and comment suggestions.
--**Prerequisites**: To use GitHub Copilot you must have an active GitHub Copilot subscription. Sign up for free here: [GitHub Copilot](https://gh.io/copilot)
+-**Prerequisites**: GitHub Copilot is available to use for free, sign up for [GitHub Copilot](https://gh.io/copilot).
 -**Timing**: This course can be completed in under an hour.
 
 

04-Using-GitHub-Copilot-with-JavaScript/README.MD

@@ -14,7 +14,7 @@ Mastering GitHub Copilot doesn’t stop at coding assistance—you’ll also lea
 -**Who this is for**: Developers, DevOps Engineers, Software development managers, Testers.
 -**What you'll learn**: Using GitHub Copilot to create code and add comments to your work.
 -**What you'll build**: Javascript files that will have code generated by Copilot AI for code and comment suggestions.
--**Prerequisites**: To use GitHub Copilot you must have an active GitHub Copilot subscription. Sign up for 30 days free [Copilot](https://github.com/settings/copilot).
+-**Prerequisites**: GitHub Copilot is available to use for free, sign up for [GitHub Copilot](https://gh.io/copilot).
 -**Timing**: This module can be completed in under an hour.
 
 

05-Using-GitHub-Copilot-with-Python/README.md

@@ -14,7 +14,7 @@ Prepare to tackle a real-world scenario! You’ll work on modifying a Python rep
 -**Who this is for**: Developers, DevOps Engineers, Software development managers, Testers.
 -**What you'll learn**: Using GitHub Copilot to create code and add comments to your work.
 -**What you'll build**: Python files that will have code generated by Copilot AI for code and comment suggestions.
--**Prerequisites**: To use GitHub Copilot you must have an active GitHub Copilot subscription. Sign up for 30 days free [Copilot](https://github.com/settings/copilot).
+-**Prerequisites**: GitHub Copilot is available to use for free, sign up for [GitHub Copilot](https://gh.io/copilot).
 -**Timing**: This module can be completed in under an hour.
 
 By the end of this module, you'll aquire the skills to be able to:

06-Using-GitHub-Copilot-with-CSharp/README.md

@@ -14,7 +14,7 @@ Prepare to tackle a practical, hands-on project! You’ll work on modifying a C#
 -**Who this is for**: Developers, DevOps Engineers, Software development managers, Testers.
 -**What you'll learn**: How to use GitHub Copilot to create code and add comments to your work.
 -**What you'll build**: C# files that will have code generated by Copilot AI for code and comment suggestions.
--**Prerequisites**: To use GitHub Copilot you must have an active GitHub Copilot subscription. Sign up for 30 days free [Copilot](https://github.com/settings/copilot).
+-**Prerequisites**: GitHub Copilot is available to use for free, sign up for [GitHub Copilot](https://gh.io/copilot).
 -**Timing**: This course can be completed in under an hour.
 
 By the end of this module, you'll acquire the skills to be able to:

07-Creating-Mini-Game-with-GitHub-Copilot/README.md

@@ -10,7 +10,7 @@ In this module, we’ll explore how to use GitHub Copilot to build a classic roc
 -**Who this is for**: Developers, DevOps Engineers, Software development managers, Testers.
 -**What you'll learn**: Harnessing GitHub Copilot to create code and add comments to your work.
 -**What you'll build**: Python files that will have code generated by Copilot AI for code and comment suggestions.
--**Prerequisites**: To use GitHub Copilot you must have an active GitHub Copilot subscription. Sign up for 30 days free [Copilot](https://github.com/settings/copilot).
+-**Prerequisites**: GitHub Copilot is available to use for free, sign up for [GitHub Copilot](https://gh.io/copilot).
 -**Timing**: This course can be completed in under an hour.
 
 By the end of this module, you'll acquire the skills to be able to:

08-Using-Advanced-GitHub-Copilot-Features/README.md

@@ -13,7 +13,7 @@ Using a Python-based HTTP API, you’ll make modifications, fix bugs, create doc
 -**Who this is for**: Developers, DevOps Engineers, Software development managers, Testers.
 -**What you'll learn**: Using Advanced GitHub Copilot features to test, document, and work with code.
 -**What you'll build**: A new HTTP API route, along with documentation and tests to verify its correctness.
--**Prerequisites**: To use GitHub Copilot you must have an active GitHub Copilot subscription. Sign up for 30 days free [Copilot](https://github.com/settings/copilot).
+-**Prerequisites**: GitHub Copilot is available to use for free, sign up for [GitHub Copilot](https://gh.io/copilot).
 -**Timing**: This module can be completed in under an hour.
 
 By the end of this module, you'll aquire the skills to be able to: