fix GraalVM setup formatting

Author: kdubois

documentation/modules/ROOT/pages/setup.adoc

@@ -55,7 +55,7 @@ Please have them installed and configured before you get started with any of the
 | `brew install maven`
 | `dnf install maven`
 | https://maven.apache.org/download.cgi[Windows] (Make sure you set the `MAVEN_HOME` environment variable and add `%MAVEN_HOME%\bin` to your `PATH`)
-**Graal VM [Optional *]**
+| **Graal VM [Optional *]**
 | https://www.graalvm.org/latest/docs/getting-started/macos/[Download & install GraalVM for MacOS]
 | https://www.graalvm.org/latest/docs/getting-started/linux/[Download & install GraalVM for Linux]
 | https://www.graalvm.org/latest/docs/getting-started/windows/[Download & install GraalVM for Windows]