Improve README

README.md

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-# ebijam23
-Ebitengine Game Jam 2023
+# Retromancer
+![Retromancer Title Image](title.png)
+
+You are the Retromancer. Time has taken its toll, for the one closest to you has become corrupted and torments the land, simply known as the Lich.
+
+It is your responsibility to save this world through your powers of reversing the effects of time and the damage the Lich has done. Perhaps they can still be saved -- returned to a moment in time before evil overtook them...
+
+![Screenshot](screenshot.png)
+
+This is a 2D puzzle + bullet hell esque game written for the second [ebitengine game jam](https://itch.io/jam/ebitengine-game-jam-2023)
+
+## Features
+  * Co-op play, locally or networked (LAN recommended)!
+  * Puzzle solving!
+  * Cool reflect and deflect abilities!
+  * Bullet hell, especially with bosses!
+  * 3 total bosses!
+  * 2 endings!
+  * Customizable content by editing or overriding the data files that define the levels, bullets, and enemies!
+  * HATS!!! ![hats](hats.png)
 
 ## Customization
 If you want to override anything, create an assets directory next to the executable and the game will prefer the contents of that directory over the built-in ones. An example would be to add your own gamepad to the `gamepad.yaml` files in the event your button and axis keybinds don't work out of the box.
+
+Much like [magnet](https://github.com/ketMix/magnet), levels heavily rely on ASCII, so a tool like [ediTTY](https://kettek.net/s/ediTTY/) will help.
+
+All of the maps, enemies, and bullets are defined as YAML files in their respective folders in the `assets` subdirectory.
+
+## Building
+`go run .` or `go build .` will suffice to either run or create a build of Retromancer.