fix: make padding between h2 sections smaller

fixes #291

Author: RomanHotsiy

lib/components/ApiInfo/api-info.scss

@@ -22,3 +22,7 @@
 :host /deep/ [section] {
   padding-top: 2 * $section-spacing;
 }
+
+:host /deep/ h2[section] {
+  padding-top: $section-spacing;
+}