Simple README

Author: St3p40

README.md

@@ -1 +1,22 @@
-Binary Animation file
+# Bitmap Array file
+
+This is a file format made for embedded devices such as Arduino Nano or ESP8266 to save images, fonts or animations made by me and [@sutaburosu](http://github.com/sutaburosu)
+
+## Specifications
+
+| Offset | Size (Bytes) | Description |
+|---|---|---|
+| 0x00 | 2 | File signature ("bA") |
+| 0x02 | 2 | Type of stored image data |
+| 0x04 | 2 | Width: Image width in pixels (uint16_t). |
+| 0x06 | 2 | Height: Image height in pixels (uint16_t). |
+| 0x08 | - | Data (Size depends on Width, Height and Type) |
+
+## Types
+
+| Type | bytes per pixel | addition | description |
+|---|---|---|---|
+| b1/b2/b3 | 1/2/3 | - | raw bitmap with set color depth |
+
+> [!NOTE]
+> B&W, monochrome, palette and other types will be implemented