docs(readme): add banner and quick-start badges

README.md

@@ -1,9 +1,30 @@
-# iKv
+![iKv banner](.gitea/images/iKv_banner.png)
+
+[![Build](https://dock-it.dev/iDENTITY-Technology/iKv/actions/workflows/build.yml/badge.svg?branch=main)](https://dock-it.dev/iDENTITY-Technology/iKv/actions?workflow=build.yml)
+[![Latest release](https://img.shields.io/gitea/v/release/iDENTITY-Technology/iKv?gitea_url=https%3A%2F%2Fdock-it.dev&label=release)](https://dock-it.dev/iDENTITY-Technology/iKv/releases/latest)
+[![Language](https://img.shields.io/badge/C-C99-00599C?logo=c)](https://en.cppreference.com/w/c/language)
+[![License](https://img.shields.io/badge/license-CC_BY--SA_4.0-lightgrey.svg)](https://dock-it.dev/iDENTITY-Technology/iKv/src/branch/main/LICENSE)
 
 iKv is a small standalone C library for reading, writing, and building iKv data trees.
 It supports both text and binary formats, keeps the public API in a single header, and
 handles multiple on-disk versions behind one interface.
 
+## Quick start
+
+Build with CMake:
+
+```sh
+cmake -S . -B build
+cmake --build build
+```
+
+Link it from another CMake project:
+
+```cmake
+add_subdirectory(path/to/iKv)
+target_link_libraries(your_target PRIVATE ikv::ikv)
+```
+
 ## What it does
 
 - Parse iKv text from strings or files