docs: move first paragraph close to footnote return link Footnotes used to look like: [1] first paragraph starts 1.2 em away because of default * + * spacing. More paragraph lines. ... It looks wrong. The return link should be closer to the first paragraph so they are seen as more of a unit. Ideally the return link '[1]' should be a hanging indent and all paragraphs for the footnote should be indented. But I can't figure out how to do that. So tighten up the space before the first paragraph. [1] So the first paragraph after the label starts right below it tying the footnote to the text.

--- a/doc/_static/style.css	Tue Jul 02 21:51:51 2024 -0400
+++ b/doc/_static/style.css	Tue Jul 02 22:31:00 2024 -0400
@@ -489,6 +489,8 @@
   padding-inline: 1em;
 }
 
+aside.footnote > span + p { margin-block-start: unset; }
+
 /* consider highlighting header element that is a target */
 /*
 :target > :is(h1,h2,h3,h4,h5,h6) {