Add Narayana reference documentation

Closes gh-5552

spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -4152,7 +4152,7 @@ property with a different value for each instance of your application.
 
 [[boot-features-jta-bitronix]]
 === Using a Bitronix transaction manager
-Bitronix is another popular open source JTA transaction manager implementation. You can
+Bitronix is popular open source JTA transaction manager implementation. You can
 use the `spring-boot-starter-jta-bitronix` starter POM to add the appropriate Bitronix
 dependencies to your project. As with Atomikos, Spring Boot will automatically configure
 Bitronix and post-process your beans to ensure that startup and shutdown ordering is
@@ -4174,6 +4174,30 @@ property with a different value for each instance of your application.
 
 
 
+[[boot-features-jta-narayana]]
+=== Using a Narayana transaction manager
+Narayana is popular open source JTA transaction manager implementation supported by JBoss.
+You can use the `spring-boot-starter-jta-narayana` starter POM to add the appropriate
+Narayana dependencies to your project. As with Atomikos and Bitronix, Spring Boot will
+automatically configure Narayana and post-process your beans to ensure that startup and
+shutdown ordering is correct.
+
+By default Narayana transaction logs will be written to a `transaction-logs` directory in
+your application home directory (the directory in which your application jar file
+resides). You can customize this directory by setting a `spring.jta.log-dir` property in
+your `application.properties` file. Properties starting `spring.jta.narayana.properties`
+can also be used to customize the Narayana configuration. See the
+{dc-spring-boot}/jta/narayana/NarayanaProperties.{dc-ext}[`NarayanaProperties` Javadoc]
+for complete details.
+
+NOTE: To ensure that multiple transaction managers can safely coordinate the same
+resource managers, each Narayana instance must be configured with a unique ID. By default
+this ID is set to `1`. To ensure uniqueness in production, you should configure the
+`spring.jta.transaction-manager-id` property with a different value for each instance of
+your application.
+
+
+
 [[boot-features-jta-javaee]]
 === Using a Java EE managed transaction manager
 If you are packaging your Spring Boot application as a `war` or `ear` file and deploying