First Update - Added Demo Play with Helpful information

Hello and THANKYOU! to everyone who has played Puzzle Bots so far. It's been very gratifying hearing from all of you, and I especially appreciate you folks who took the time to fill out the survey. If you haven't yet, the feedback is invaluable to me, so please consider doing so now.  Over the past few days I've rolled out a couple updates, here's the changelog:

• Added Demonstration Mode at game start with helpful information & tips
  • You can bring this up later from the pause menu (Escape or Start Button) by hitting the Help button
• Reduced the music volume to make the sound effects stand out more
• Added Incoming Attack Warnings (sound & visual) to improve clarity
• Improved color contrast in the Menus & Added animations
• Disabled the Quit Button in the WebGL Build