MDN has a lot of information.
<li> is a list item element.
<h1> is a heading level 1 element.
It is the parent list element that determines which symbol is used for the list items. <ul> is an unordered list and uses the dot by default. <ol> is an ordered list and uses numbers.
I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.
You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.
See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (’).