Fix README

Author: martinRenou

README.md

@@ -2,18 +2,18 @@
 
 This project holds the recipe for building PyPI wheels for the [xeus-python](https://github.com/jupyter-xeus/xeus-python) project.
 
-The continuous integration builds and tests wheels for 
+The continuous integration builds and tests wheels for
 
- - Linux (`manylinux2010_x86_64`),
- - OS X (`Xcode 9.4.1`),
+ - Linux (`manylinux2014_x86_64`),
+ - OS X (`Xcode 13.1.0`),
  - and Windows (x64).
 
 ## Building the manylinux wheels
 
 Building the manylinux wheels requires `docker`. To build manylinux2010 wheels, clone the repository, and run:
 
 ```bash
-docker run --rm -e PLAT=manylinux2010_x86_64 -v `pwd`:/io quay.io/pypa/manylinux2010_x86_64 /io/scripts/build-wheels.sh
+docker run --rm -e PLAT=manylinux2014_x86_64 -v `pwd`:/io quay.io/pypa/manylinux2014_x86_64 /io/scripts/build-wheels.sh
 ```
 
 from the root of the source directory.