Ruby_Basic Data Types:Add a link about methods return values

[youssef-el-atmani]

When I finished the ruby_basics exercise, I looked at the solutions and noticed that the functions (or methods) didn’t have a return statement. I found this odd, which led me to the article I’ve linked, which explains that Ruby methods don’t require an explicit return statement.

Because

For those that just finished the Foundations course, and came from JS, they will find it a bit odd that Ruby methods does not require an explicit return statement. The article linked in the assignment briefly and clearly explains that little mystery

This PR

• Add a link to an article that explain the return values in Ruby

Issue

Closes #XXXXX

Additional Information

Pull Request Requirements

• [x] I have thoroughly read and understand The Odin Project curriculum contributing guide
• [x] The title of this PR follows the location of change: brief description of change format, e.g. Intro to HTML and CSS lesson: Fix link text
• [x] The Because section summarizes the reason for this PR
• [x] The This PR section has a bullet point list describing the changes in this PR
• [x] If this PR addresses an open issue, it is linked in the Issue section
• [x] If any lesson files are included in this PR, they have been previewed with the Markdown preview tool to ensure it is formatted correctly
• [x] If any lesson files are included in this PR, they follow the Layout Style Guide

[KevinMulhern]

Thanks for the suggestion @youssef-el-atmani. But we explain this in the ruby Methods lesson.