mdscrub: residual html, control characters, headings, page markers

parity/cases/mdscrub/anchors.md

@@ -0,0 +1,11 @@
+# <span id="page12"></span>The Quarrel
+
+The mill stood at the northern end of the valley.
+
+<span id="page13"></span>
+
+Two miles downstream the abbey had built its own.
+
+## <a id="page-14"></a>
+
+Text under a heading that was nothing but an anchor.