Issue #9463: update example of AST for TokenTypes.LITERAL_BOOLEAN

[Venkatesh-24]

Closes: #9463

**Test.java**
public class Test { 
  public boolean flag;
}

**AST**
java -jar checkstyle-9.0.1-all.jar -t Test.java
`--CLASS_DEF -> CLASS_DEF [4:0]
    |--MODIFIERS -> MODIFIERS [4:0]
    |   `--LITERAL_PUBLIC -> public [4:0]
    |--LITERAL_CLASS -> class [4:7]
    |--IDENT -> Test [4:13]
    `--OBJBLOCK -> OBJBLOCK [4:18]
        |--LCURLY -> { [4:18]
        |--VARIABLE_DEF -> VARIABLE_DEF [5:2]
        |   |--MODIFIERS -> MODIFIERS [5:2]
        |   |   `--LITERAL_PUBLIC -> public [5:2]
        |   |--TYPE -> TYPE [5:9]
        |   |   `--LITERAL_BOOLEAN -> boolean [5:9]
        |   |--IDENT -> flag [5:17]
        |   `--SEMI -> ; [5:21]
        `--RCURLY -> } [6:0]

# Printing the code that we care
java -jar checkstyle-9.0.1-all.jar -t Test.java | grep 5:
|--VARIABLE_DEF -> VARIABLE_DEF [5:2]
|   |--MODIFIERS -> MODIFIERS [5:2]
|   |   `--LITERAL_PUBLIC -> public [5:2]
|   |--TYPE -> TYPE [5:9]
|   |   `--LITERAL_BOOLEAN -> boolean [5:9]
|   |--IDENT -> flag [5:17]
|   `--SEMI -> ; [5:21]

Expected update for javadoc

VARIABLE_DEF -> VARIABLE_DEF
  |--MODIFIERS -> MODIFIERS
  |   `--LITERAL_PUBLIC -> public
  |--TYPE -> TYPE
  |   `--LITERAL_BOOLEAN -> boolean
  |--IDENT -> flag
  `--SEMI -> ;

[Venkatesh-24]

I made all the changes and ran mvn clean verify and the build was success. can you please review it @romani

[Venkatesh-24]

Hi @romani can you please assign me some issue to try and fix.