Update README, publish to crates.io

Cargo.toml

@@ -3,7 +3,11 @@ name = "bitmap-allocator"
 version = "0.1.0"
 authors = ["WangRunji <[email protected]>"]
 edition = "2021"
+license = "MIT"
 readme = "README.md"
+repository = "https://github.com/rcore-os/bitmap-allocator"
+keywords = ["bitmap", "allocator", "memory"]
+categories = ["memory-management", "no-std"]
 
 [dependencies]
 bit_field = "0.10"

README.md

@@ -1,6 +1,8 @@
 # BitmapAllocator
 
-[![CI](https://github.com/rcore-os/bitmap-allocator/workflows/CI/badge.svg?branch=master)](https://github.com/rcore-os/bitmap-allocator/actions)
+[![Crates.io](https://img.shields.io/crates/v/bitmap-allocator)](https://crates.io/crates/bitmap-allocator)
+[![Docs.rs](https://docs.rs/bitmap-allocator/badge.svg)](https://docs.rs/bitmap-allocator)
+[![CI](https://github.com/rcore-os/bitmap-allocator/actions/workflows/main.yml/badge.svg?branch=main)](https://github.com/rcore-os/bitmap-allocator/actions/workflows/main.yml)
 [![Coverage Status](https://coveralls.io/repos/github/rcore-os/bitmap-allocator/badge.svg?branch=master)](https://coveralls.io/github/rcore-os/bitmap-allocator?branch=master)
 
 Bit allocator based on segment tree algorithm.

src/lib.rs

@@ -1,6 +1,5 @@
-//! Bit allocator based on segment tree algorithm.
-
 #![no_std]
+#![doc = include_str!("../README.md")]
 
 use bit_field::BitField;
 use core::ops::Range;