✏️ Fix typos

[ebouchut]

🙏 🙌 First off, thank you for the quality of the Loop and Looptips documentation. The navigation on the site is a breeze which is quite helpful.

This PR:

• fixes a few typos here and there,
• fixes bullet lists not rendered as expected in the Data Tools/Health (see below). The missing newline before the bullet lists prevents mkdocs-material from rendering them as expected whereas surprisingly Github Markdown viewer is not affected by this issue.

Actual Rendering

Expected Rendering

[marionbarker]

Looks like one you know what you are doing.

Looks like one of the typos you found are on a page I just changed - but you found more typos than I did.

I will leave this open and let you update, then I will happily merge.

[ebouchut]

@marionbarker I updated the branch.

💚 Thx for all the time and energy that you put into the documentation and the involvement in the chat.

[marionbarker]

Thanks much.