Merge pull request #200 from tkrs/tkrs-patch-1

doc: fix badge

README.md

@@ -2,7 +2,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/poston.svg)](https://crates.io/crates/poston)
 [![ci](https://github.com/tkrs/poston/actions/workflows/main.yml/badge.svg)](https://github.com/tkrs/poston/actions/workflows/main.yml)
-[![Publish to crate.io](https://github.com/tkrs/poston/actions/workflows/publish.yml/badge.svg)](https://github.com/tkrs/poston/actions/workflows/publish.yml)
+[![release-please](https://github.com/tkrs/poston/actions/workflows/release-please.yml/badge.svg)](https://github.com/tkrs/poston/actions/workflows/release-please.yml)
 [![codecov](https://codecov.io/gh/tkrs/poston/branch/master/graph/badge.svg)](https://codecov.io/gh/tkrs/poston)