docs: add MIT license and README

Co-authored-by: Cursor <cursoragent@cursor.com>

README.md

@@ -3,8 +3,6 @@
 
 # Immich Frame
 
-![PaperColor displaying a photo from Immich](docs/PaperColor.jpg)
-
 An ESP32 firmware for the [M5Stack PaperColor](https://shop.m5stack.com/products/m5paper-color-esp32s3-dev-kit) e-ink display that turns it into a digital photo frame powered by your [Immich](https://immich.app/) server.
 
 ## Features