DEMO 1.1 hotfix

Just a small update with some QOL improvements and bugfixes:

• Enemies health is now visible in numbers
• Updated tutorial for some more clarity on what you need to do.
• Nerfed Specters, less health and they can only disappear one time in a row
• Hard spells are now slightly easier to cast
• Health is now also displayed in your inventory (helps to heal)
• Rage curse buffed slightly 
• Some other minor bugfixes