Update README and CHANGELOG for new SDK 78

CHANGELOG.md

@@ -18,6 +18,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ### Changed
 
+- Updated to SDK 78 (firmware 1.1.2)
 - `flipperzero::dialogs::DialogFileBrowserOptions` now uses native initialization function.
 - `flipperzero::time::Duration::MAX` is now the maximum duration representable.
 - `sys::furi::Status::err_or_else` has been replaced by `sys::furi::Status::into_result`.

README.md

@@ -1,7 +1,7 @@
 # Rust for Flipper Zero 🐬❤️🦀
 
 [![crates.io](https://img.shields.io/crates/v/flipperzero)](https://crates.io/crates/flipperzero)
-[![Flipper Zero API](https://img.shields.io/badge/Flipper%20Zero%20API-73.0-orange)](https://github.com/flipperdevices/flipperzero-firmware/blob/1.0.1/targets/f7/api_symbols.csv)
+[![Flipper Zero API](https://img.shields.io/badge/Flipper%20Zero%20API-78.0-orange)](https://github.com/flipperdevices/flipperzero-firmware/blob/1.1.2/targets/f7/api_symbols.csv)
 [![docs.rs](https://img.shields.io/docsrs/flipperzero)](https://docs.rs/flipperzero)
 [![MIT license](https://img.shields.io/crates/l/flipperzero)](LICENSE)
 
@@ -17,12 +17,13 @@ This means it's not possible to use anything in the [`std`](https://doc.rust-lan
 
 ## SDK version
 
-Currently supports SDK 73.0 ([flipperzero-firmware@1.0.1](https://github.com/flipperdevices/flipperzero-firmware/tree/1.0.1)).
+Currently supports SDK 78.0 ([flipperzero-firmware@1.1.2](https://github.com/flipperdevices/flipperzero-firmware/tree/1.1.2)).
 
 The crate major version number will be updated after a bump in [API version](https://github.com/flipperdevices/flipperzero-firmware/blob/release/targets/f7/api_symbols.csv) in the Flipper Zero firmware.
 
 | Crate version | API version |
 | ------------- | ----------- |
+| Unreleased    | 78.0        |
 | 0.12.x        | 73.0        |
 | 0.11.x        | 35.0        |
 | 0.10.x        | 28.2        |