apply axe-hack to sorting.html, issue #449

Because the issue only seems to happen when a display:inline
element is a child of a display:block element and overflows
(in addition to some other conditions), our hack just sets
code elems which are children of pre elems to display:block.

_posts/2019-05-22-sorting.md

@@ -8,7 +8,7 @@ image: /assets/2019-05-22/og-image.jpg
 assets: /assets/2019-05-22
 code: https://github.com/travisdowns/sort-bench/blob/master
 excerpt: Building sort functions faster than what the C and C++ standard libraries offer.
-content_classes: invert-img
+content_classes: invert-img axe-hack
 ---
 
 Recently, Daniel Lemire [tackled the topic](https://lemire.me/blog/2019/05/07/almost-picking-n-distinct-numbers-at-random/) of selecting N _distinct_ numbers at random. In the case we want sorted output, an obvious solution presents itself: sorting randomly chosen values and de-duplicating the list, which is easy since identical values are now adjacent.[^distinct]

_sass/minima/custom-styles.scss

@@ -115,9 +115,14 @@ sup[id^='fnref'] {
   border-radius:10%;
 }
 
-// work around
+// workaround for
 // https://github.com/jekyll/minima/issues/604
 pre,
 code {
   @include relative-font-size(0.9375);
 }
+
+// workaround for https://github.com/travisdowns/travisdowns.github.io/issues/449
+.axe-hack pre > code {
+    display: block;
+}