Update to spec 0.24 (#28)

Author: robinst

commonmark-test-util/src/main/java/org/commonmark/spec/SpecReader.java

@@ -82,21 +82,20 @@ private List<SpecExample> read() throws IOException {
     }
 
     private void processLine(String line) {
-        boolean dot = line.equals(".");
         switch (state) {
             case BEFORE:
                 Matcher matcher = SECTION_PATTERN.matcher(line);
                 if (matcher.matches()) {
                     section = matcher.group(1);
                     exampleNumber = 0;
                 }
-                if (dot) {
+                if (line.equals("```````````````````````````````` example")) {
                     state = State.SOURCE;
                     exampleNumber++;
                 }
                 break;
             case SOURCE:
-                if (dot) {
+                if (line.equals(".")) {
                     state = State.HTML;
                 } else {
                     // examples use "rightwards arrow" to show tab
@@ -105,7 +104,7 @@ private void processLine(String line) {
                 }
                 break;
             case HTML:
-                if (dot) {
+                if (line.equals("````````````````````````````````")) {
                     state = State.BEFORE;
                     examples.add(new SpecExample(section, exampleNumber,
                             source.toString(), html.toString()));