Added budget table on support page

cc @Sporiff

src/style/2-components/_table.scss

 table {
   font-size: 90%;
   width: 100%;
-  td, th {
+  td,
+  th {
     padding: $content-padding;
     text-align: left;
     border-bottom: 1px solid $divider-color;
   }
 }
+td.amount {
+  text-align: right;
+  font-family: monospace;
+}
 
+table caption {
+  text-align: left;
+  font-weight: bold;
+  font-size: 120%;
+  padding: 1em;
+}
+tr.emphasis {
+  background-color: rgba($color: #000000, $alpha: 0.05);
+}
 .table-wrapper {
   overflow-x: auto;
 }