Add MD033 with tests, rename test file.

test/inline_html.md

@@ -0,0 +1,13 @@
+# Regular header
+
+<h1>Inline HTML Header {MD033}</h1>
+
+<p>More inline HTML {MD033}
+but this time on multiple lines
+</p>
+
+    <h1>This shouldn't trigger as it's inside a code block</h1>
+
+```text
+<p>Neither should this as it's also in a code block</p>
+```

test/markdownlint-test.js

@@ -498,7 +498,7 @@ module.exports.badFileSync = function badFileSync(test) {
 };
 
 module.exports.readme = function readme(test) {
-  test.expect(143);
+  test.expect(144);
   fs.readFile("README.md", shared.utf8Encoding,
     function readFile(err, contents) {
       test.ifError(err);
@@ -555,7 +555,7 @@ module.exports.readme = function readme(test) {
 };
 
 module.exports.doc = function doc(test) {
-  test.expect(87);
+  test.expect(90);
   fs.readFile("doc/Rules.md", shared.utf8Encoding,
     function readFile(err, contents) {
       test.ifError(err);