Yes, it has some rough edges. One lesson you can learn is probably not to write things like this, and just let what you have stand as it is, and incrementally improve it.

Is there a mechanism to submit fixes?

This is a wonderful resource, but the deeper I get, the more I find it needs a little proofreading. I'd be happy to open PRs/whatever with typo/grammatical fixes.

Also, thanks for writing this - I've had to deal with more and more of these concepts recently and this is the first resource I've found that has helped me understand how the parts fit together and why they exist.

Thanks for the guide nonetheless. Going to be refreshing myself on a lot of this.