I fixed typo document

Comment From: philwebb

Thanks. The tag::code[] comments should not be required, are you seeing problems with those samples?

Comment From: wilkinsona

As shown in the docs, the Kotlin snippets are empty at the moment: https://docs.spring.io/spring-boot/reference/io/jta.html#io.jta.mixing-xa-and-non-xa-connections

Comment From: philwebb

Thanks @wilkinsona. We might want to go the other way and update the Java samples to remove the code tag, that way imports can be shown in the sample.

Comment From: ngocnhan-tran1996

@philwebb I removed the code tag in Java sample and reverted Kotlin sample files in my machine. The result is the code snippets are empty, both Java and Kotlin

Comment From: wilkinsona

I think the includes need to be updated as well to remove [tag=*].

Comment From: ngocnhan-tran1996

Thanks @wilkinsona

It works. I will update PR

Comment From: philwebb

Thanks very much @ngocnhan-tran1996