Bump version to 0.2.2
diff --git a/md4c/md4c.h b/md4c/md4c.h
index 9509eda..080be38 100644
--- a/md4c/md4c.h
+++ b/md4c/md4c.h
@@ -33,7 +33,7 @@
#define MD_VERSION_MAJOR 0
#define MD_VERSION_MINOR 2
-#define MD_VERSION_RELEASE 0
+#define MD_VERSION_RELEASE 2
/* Magic to support UTF-16. */