Update MD024/no-duplicate-heading to allow non-sibling duplicates (fixes #136).

test/heading-duplicate-content-siblings-only.md

@@ -0,0 +1,96 @@
+# Heading duplicate content siblings only
+
+# A
+
+{MD025:3}
+
+## B
+
+### C
+
+## B
+
+{MD024:11}
+
+### C
+
+## D
+
+### C
+
+### E
+
+### C
+
+{MD024:23}
+
+##### F
+
+{MD001:27}
+
+#### G
+
+##### F
+
+#### G
+
+{MD024:35}
+
+### E
+
+{MD024:39}
+
+# A
+
+{MD024:43} {MD025:43}
+
+## B
+
+### C
+
+## B
+
+{MD024:51}
+
+# Heading duplicate content siblings only
+
+{MD024:55} {MD025:55}
+
+AA
+==
+
+{MD025:59}
+
+AA
+--
+
+BB
+--
+
+CC
+--
+
+BB
+--
+
+{MD024:73}
+
+BB
+==
+
+{MD025:78}
+
+BB
+--
+
+## AAA ##
+
+### BBB ###
+
+## BBB ##
+
+### BBB ###
+
+## BBB ##
+
+{MD024:94}