update the code for oracle sequence in 2.adoc

Author: balinorLiang

CN/modules/ROOT/pages/v3.4/2.adoc

@@ -78,4 +78,5 @@ IvorySQL是一个功能强大的开源对象关系数据库管理系统(ORDBMS)
 * https://docs.ivorysql.org/cn/ivorysql-doc/v3.4/v3.4/20[兼容Oracle函数与存储过程]
 * https://docs.ivorysql.org/cn/ivorysql-doc/v3.4/v3.4/21[内置数据类型与内置函数]
 * https://docs.ivorysql.org/cn/ivorysql-doc/v3.4/v3.4/22[新增Oracle兼容模式的端口与IP]
-* https://docs.ivorysql.org/cn/ivorysql-doc/v3.4/v3.4/26[XML函数]
+* https://docs.ivorysql.org/cn/ivorysql-doc/v3.4/v3.4/26[XML函数]
+* https://docs.ivorysql.org/cn/ivorysql-doc/v3.4/v3.4/27[兼容Oracle sequence]

EN/modules/ROOT/pages/v3.4/2.adoc

@@ -73,3 +73,4 @@ IvorySQL is a powerful open source object-relational database management system
 * https://docs.ivorysql.org/cn/ivorysql-doc/v3.4/v3.4/21[8. Built-in data types and built-in functions]
 * https://docs.ivorysql.org/cn/ivorysql-doc/v3.4/v3.4/22[9. Added Oracle compatibility mode ports and IP]
 * https://docs.ivorysql.org/cn/ivorysql-doc/v3.4/v3.4/26[10. XML Function]
+* https://docs.ivorysql.org/cn/ivorysql-doc/v3.4/v3.4/27[11. Compatible with Oracle sequence]