On the Help webpage, the "Englarging the screenshot" section shows up as raw HTML.

The section of the Greenshot Help page entitled "Enlarging the Screenshot" (which should be sub-heading 6 under heading 2, "Using the image editor," according to the table of contents) appears as follows, with all of the HTML tags visible to the public:

This also means that the link to this section from the table of contents is a dud. Based on a quick glance at the HTML code for the webpage, this seems to be because that paragraph is for some reason wrapped in <div class="language-plaintext highlighter-rouge">…</div> tags.