Write documentation for block break

[SkyeErnst]

Any new player playing block break will have no idea what the different colors mean and how score is calculated. A quick document should be drafted that is displayed when the game starts.

[SkyeErnst]

Here is a list of the block types and what they do:
Normal blocks: white: one hit : normal score
Two hit blocks: (1st) red (2nd) yellow: two hits: normal score
Double point blocks: Blue: one hit: 2x score
Triple point blocks: Green: one hit: 3x score
Indestructable block: Black: NaN hits: No score, block cant be destroyed

All of that should be put into an image that can be displayed at will by pressing escape and clicking tutorials, and then block break..

[SkyeErnst]

Tutorial image is now created, however there are issues exporting the image from Photoshop, Namely, unity cannot open the file and attempting a manual export yields a blank export screen.