update java doc

Author: terrymanu

sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/api/ShardingValue.java

@@ -32,7 +32,7 @@
  * 
  * <p>
  * 目前支持{@code =, IN, BETWEEN};
- * 不支持{@code , >, <-, >=, LIKE, NOT, NOT IN}.
+ * 不支持{@code , >, <=, >=, LIKE, NOT, NOT IN}.
  * </p>
  * 
  * @author zhangliang