tweak the CSS for compound rules summary

related to #251
adds some margin on the sides to improve alignment

ippisite/ippidb/templates/compound_l_item.html

@@ -13,7 +13,7 @@
       {% endif %}
     </div>
     <h4 class="pt-2 compound_list_title">Chemistry rules</h4>
-    <div class="row">
+    <div class="row m-1">
       <table class="table table-sm col-sm-12 col-md-6 card_border m-1" style="text-align: center;">
         <thead>
           <tr>