Foundations/Join the Odin Community: adds language to not intrude on 1:1 help to discord guideline

[JustWaveThings]

Because

• Adds language that we don't want learners barging in on help discussions.

This PR

• adds verbiage to end guideline to clarify

Don’t exclude anyone: These are public chats; if someone joins in on a conversation, include them!

Issue

n/a

Additional Information

https://discord.com/channels/505093832157691914/1313787229608611852

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

[wise-king-sullyman]

Thanks Fred!