updates to enchanting and minecarts

[dealingwith]

resolves #26

[dealingwith]

@jamespeilunli this diff is really hard to read because I broke "section 4" into two, moving the existing sections 5-7 to now be 6-8.

I deleted some images that weren't being used.

I moved images out of a specific section folder because I foresee more section renaming in the future, so just having all images in the root images folder makes that less laborious.

For review, just look at the end result of sections 4 and 5 and review for correctness.

[dealingwith]

For review, just look at the end result of sections 4 and 5 and review for correctness.

To do this, you can use the "rich diff" viewer available in the header of a markdown file in the "Files changed" tab:

[jamespeilunli]

I believe everything is correct, but I added a few suggestions on some things to add.

[dealingwith]

Great recommendations, @jamespeilunli! I'll work on adding this as soon as I can

[dealingwith]

I've addressed all your feedback. Give me another reivew. 😄

[jamespeilunli]

Looks good!