rm padding for nested lists

Author: rushatgabhane

docs/_sass/_main.scss

@@ -374,6 +374,14 @@ button {
             }
         }
 
+        ol {
+            li {
+                ul {
+                    padding-bottom: 0;
+                }
+            }
+        }
+
         table {
             margin-bottom: 20px;
             border-radius: 8px;