Fix JsonArray documentation for getBoolean #149

Signed-off-by: Jorge Bescos Gascon <jorge.bescos.gascon@oracle.com>

api/src/main/java/jakarta/json/JsonArray.java

diff --git a/api/src/main/java/jakarta/json/JsonArray.java b/api/src/main/java/jakarta/json/JsonArray.java
index d31fb00..3cdbaaf 100644
--- a/api/src/main/java/jakarta/json/JsonArray.java
+++ b/api/src/main/java/jakarta/json/JsonArray.java
@@ -242,7 +242,7 @@
      * @return the boolean value at the specified position
      * @throws IndexOutOfBoundsException if the index is out of range
      * @throws ClassCastException if the value at the specified position is not
-     * assignable to {@code JsonValue.TRUE} or {@code JsonValue.FALSE}
+     * {@code JsonValue.TRUE} or {@code JsonValue.FALSE}
      */
     boolean getBoolean(int index);