I have been playing around with customizing the names for my own fun, but I noticed that the item description for the explosive bullets has

"Groups of biters don not stand a chance"
I'm assuming that "don" is not intentional

Also I'm not exactly sure what it does, but adding ' in a sentence makes everything go orange so everything after ender chests technology description is orange in visual studio code

Yes, thank you for pointing that one out.
My mind was probably at 2 places simultaneously.

The orange text? Don't worry about it. Nothing bad has happened, yet.