Fix table

Author: leburgel

README.md

@@ -1,7 +1,7 @@
 # MPSKitModels.jl
 
 | **Documentation** | **Build Status** | **Coverage** |
-|:-----------------:|:----------------:|:------------:|:-----------------------------:|
+|:-----------------:|:----------------:|:------------:|
 | [![][docs-stable-img]][docs-stable-url] [![][docs-dev-img]][docs-dev-url] | [![CI][ci-img]][ci-url] | [![codecov][codecov-img]][codecov-url] |
 
 [docs-stable-img]: https://img.shields.io/badge/docs-stable-blue.svg