Fix some typos, reword, correct open source vs source available definition

[qtlunya]

Pull request template

Category

• [ ] Add mod to alternatives page
• [x] Site changes
• [ ] Chore/documentation updates

Describe changes

Why did you do this?

Fixed some typos and incorrect information about open source vs. source available, and reworded some stuff for clarity.

BREAKING CHANGES

• [ ] Tick this box if you made changes that may or may not break site functionality.

Checklist

• [x] I have clearly stated why I want this to be changed.
• [x] For major changes, I have clearly stated what they are and why I've done them.
• [x] Any new resources put in are safe and not malicious.

• [x] I have searched for duplicate PRs and have not found any.
• [ ] I did not read this section.

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[blryface]

I'm not sure what the branch protection does so uh

[blryface]

yeah that should do

[blryface]

it's being dumb I'll just force it to merghe

[blryface]

???? I love internet lag

[blryface]

I had to remove it from the queue for it to update and merge 🔥