tweak positioning of sidenote counter

src/lib/Sidenote.svelte

@@ -23,9 +23,12 @@
 
         &:before {
             content: counter(sidenote) " ";
-            position: relative;
+            /* absolute positioning puts it at the top-left corner of the sidenote */
+            position: absolute;
+            /* translate moves it out to the left (and just a touch up to mimic the superscript efect)
+            -100% refers to the width of the element, so it pushes it out further if necessary (i.e. two digits instead of one) */
+            transform: translate(calc(-100% - 0.2rem), -0.15rem);
             font-size: 0.75rem;
-            bottom: 0.2rem;
             color: #8c0606;
         }
     }