The page is not responsive. Hosting on Github pages doesn't mean the web page will be responsive. It depends on the template you have used which is not responsive apparently.
Yeah, I'm not a UX guy, I'm a programmer. It's plaintext rendered with HTML. The <meta> tag above prevented scaling on WebKit phones. I don't really believe in using templates or overlays because I'm afraid of them interfering with usability, disabling the ability of a viewer to read the text, or being distracting.
If you are interested in the content I've posted, you would be best off printing it out and reading it. It's probably easier on the eyes.
You still have widths expressed in pixels which still limits the chance of your text being readable on some smaller devices. At least I can report that your page is fully readable using Safari on iPhones in the "reader mode" (which avoids all the original formatting of the page).
xigency didn't say it was responsive, merely that the template they were using is disabling user scrolling by default, which they have said is now fixed.