Merge pull request #1527 from davidhewitt/fix-badges

readme: tidy badges

Author: davidhewitt

README.md

@@ -1,10 +1,10 @@
 # PyO3
 
-[![Actions Status](https://github.com/PyO3/pyo3/workflows/Test/badge.svg)](https://github.com/PyO3/pyo3/actions)
+[![actions status](https://github.com/PyO3/pyo3/workflows/CI/badge.svg)](https://github.com/PyO3/pyo3/actions)
 [![codecov](https://codecov.io/gh/PyO3/pyo3/branch/main/graph/badge.svg)](https://codecov.io/gh/PyO3/pyo3)
 [![crates.io](http://meritbadge.herokuapp.com/pyo3)](https://crates.io/crates/pyo3)
 [![minimum rustc 1.41](https://img.shields.io/badge/rustc-1.41+-blue.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
-[![Join the dev chat](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](https://gitter.im/PyO3/Lobby)
+[![dev chat](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](https://gitter.im/PyO3/Lobby)
 
 [Rust](http://www.rust-lang.org/) bindings for [Python](https://www.python.org/). This includes running and interacting with Python code from a Rust binary, as well as writing native Python modules.