Enhance README with formatting and external references

Signed-off-by: Jody Paul <jody@users.noreply.github.com>

Author: jody

README.md

@@ -3,18 +3,23 @@ Scaffold for creating double-clickable apps using Java
 
 This project uses Apache Ant and JDK 25 to compile, bundle, and package a Java application into native installers (.dmg for macOS, .deb for Ubuntu, and .msi for Windows).
 
+---
 ## Common Requirements (All Systems)
 Before running the build, ensure the following are installed and configured:
 - JDK 21 or 25: Must be installed. Although jpackage was introduced in JDK 14, JDK 21+ is recommended for modern macOS/Linux/Windows support.
 - Apache Ant: Installed and available in your PATH.
 - `JAVA_HOME`: This environment variable must point to your JDK installation directory.
   - Check via: `ant -version` and `java -version`
+
+---
 ## macOS Setup
 To build the .dmg installer, your Mac needs the following:
 - Xcode Command Line Tools: Required for various build utilities.
   - Install via: `xcode-select --install`
 - Icon Asset: A file named icon.icns must be in the project root.
 - Note on Security: Since the app is not "Signed" with an Apple Developer Certificate, users may need to Right-Click > Open the app the first time to bypass the "Unidentified Developer" warning.
+
+---
 ## Ubuntu / Debian Setup
 To build the .deb package on Linux, jpackage requires external tools to create the Debian archive structure.
 
@@ -27,6 +32,8 @@ sudo apt install ant fakeroot dpkg-dev
 - fakeroot: Allows the package to be built with correct file permissions without requiring root access.
 - dpkg-dev: Provides the core utilities to create Debian packages.
 - Icon Asset: A file named icon.png (512x512 recommended) must be in the project root.
+
+---
 ## Windows Setup
 To build the .msi installer on Windows, ensure the following:
 - JDK 21 or 25: Must be installed with JAVA_HOME configured.
@@ -37,6 +44,8 @@ To build the .msi installer on Windows, ensure the following:
   - After installation, verify WiX is in your PATH by running: `candle -?`
 - Icon Asset: A file named icon.ico must be in the project root.
 - Note on Security: Windows may show a SmartScreen warning for unsigned installers. Users will need to click "More info" > "Run anyway" to install the app.
+
+---
 ## Project Directory Structure
 Ensure your project looks like this for the build.xml to find all resources:
 
@@ -49,6 +58,8 @@ MyAppName/
 ├── icon.ico            # Required for Windows MSI
 └── build.xml           # The Ant build script
 ```
+
+---
 ## Usage Commands
 Open a terminal in the project root and use the following targets:
 
@@ -59,6 +70,7 @@ Open a terminal in the project root and use the following targets:
 | ant run	| Compiles and launches the app immediately for testing. |
 | ant clean	| Deletes the build/ and dist/ folders to start fresh. |
 | ant -p	| Displays a help menu of all available targets. |
+
 ## Troubleshooting
 <table>
   <tr>
@@ -79,6 +91,8 @@ Open a terminal in the project root and use the following targets:
   </tr>
 </table>
 
+---
+
 ## Automated Releases
 This project uses GitHub Actions to automatically build and distribute native installers. The workflow is split into two phases: Build and Release.
 
@@ -115,5 +129,16 @@ When ready to bump the version, remember to update the version number in **two**
 - The **app.version** property at the top of `build.xml`. This ensures that when the user installs the app, the OS sees the correct version number in the "About" or "Get Info" screens.
 
 ---
-## Project Website
+## Native Java App Website
+
 https://metrocs.github.io/NativeJavaApp/
+
+---
+## References
+
+### jpackage
+
+- https://docs.oracle.com/en/java/javase/25/docs/specs/man/jpackage.html
+
+### Alternatives
+- **jDeploy:** https://www.jdeploy.com