While I value contributions in general, this repository is a personal blog post.
In other words, it means I will listen to reports about inaccuracies, errors, typos, etc. But this is not a community driven documentation. I want to be the author of all the texts here. If you feel reformulating a sentence would make it more readable, you might be right, but I probably won't accept it anyway.
But, once again, this is specific to just this one repository. Contributions to other projects are more than welcome.