Update markdown-render.css for improved styling and spacing

markdown-render.css

@@ -33,6 +33,10 @@
   color: var(--md-text-color);
 }
 
+.md-root > .md-heading:first-child {
+  margin-top: 0;
+}
+
 .md-heading--1 {
   font-size: 1.8rem;
 }
@@ -49,6 +53,14 @@
   font-size: 1.1rem;
 }
 
+.md-paragraph {
+  margin: 0 0 0.9rem;
+}
+
+.md-paragraph:last-child {
+  margin-bottom: 0;
+}
+
 /* Horizontal rule */
 .md-hr {
   border: 0;
@@ -259,4 +271,4 @@ code:not(.md-codeblock__code) {
 .md-link--external:focus-visible .md-link__tooltip {
   opacity: 1;
   transform: translateY(0);
-}
+}