Because

Update form_validations.md on line 73 for textarea tag as code block because it makes the HTML tag reference in the content easier to grasp for readers.

This PR

• Changed line 73
• Changed textarea to <textarea> as per suggestion in the open issue

Issue

Closes #29075

Additional Information

Pull Request Requirements

• I have thoroughly read and understand The Odin Project curriculum contributing guide
• 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
• The Because section summarizes the reason for this PR
• The This PR section has a bullet point list describing the changes in this PR
• If this PR addresses an open issue, it is linked in the Issue section
• If any lesson files are included in this PR, they have been previewed with the Markdown preview tool to ensure it is formatted correctly
• If any lesson files are included in this PR, they follow the Layout Style Guide