Thanks a lot! Believe me, there have been a lot of bugs (+900 issues closed today) because it's hard to save a web page actually. You were lucky not to suffer ;)
SingleFile just makes this one really complex, really important thing trivially easy, and in a portable format. For anyone curating a knowledge base it’s an absolute godsend.
I didn’t see any donation instructions on your GitHub - I for one would certainly love to chip in if you could point me in the right direction?