update readme

README.md

@@ -4,3 +4,27 @@ A web version of Taiko no Tatsujin
 Running instance: https://taiko.bui.pm
 
 Still in developement. Works best with Chrome.
+
+## Setup
+**Requirements**: Python 2.7, [Flask](https://pypi.org/project/Flask/)
+
+Create a SQLite databse named `taiko.db` with the following schema:
+
+    CREATE TABLE "songs" ( `id` INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, `title` TEXT NOT NULL, `title_en` TEXT, `easy` INTEGER, `normal` INTEGER, `hard` INTEGER, `oni` INTEGER, `enabled` INTEGER NOT NULL, `category` INTEGER )
+
+When inserting rows, leave any difficulty columns as NULL if you don't intend to add notecharts for them.
+
+Each song's data is contained within a directory under `public/songs/`. For example:
+
+    └───public
+        ├───songs
+        │   ├───1
+        │   │       bg.png
+        │   │       easy.osu
+        │   │       hard.osu
+        │   │       main.mp3
+        │   │       normal.osu
+        │   │       oni.osu
+        │   │
+
+Run `app.py`, and use any web server to serve `public/` as the root directory, while routing `/api/` to the Flask server.