Merge pull request devonfw#272 from cinnamon-coder-hub/feature/257-rework-appearance-devonfw-guide

devonfw#257: reworked appearance devonfw guide

Author: SchettlerKoehler

asciidoctor-stylesheet/sass/devonfw.scss

@@ -71,6 +71,19 @@ hr {
   }
 }
 
+
+.sect3 {
+  margin-bottom: 50px
+}
+
+.sect3:last-of-type {
+  margin-bottom: 0
+}
+
+.nav-footer {
+  display: none;
+}
+
 .menu-button {
   z-index: 30;
   background: transparent;