Update README.md

Author: andreramosfdc

README.md

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 # StateSpaceLearning
 
 | **Build Status** | **Coverage** | **Documentation** | **CodeStyle** |
-|:-----------------:|:-----------------:|:-----------------:|
+|:-----------------:|:-----------------:|:-----------------:|:-----------------:|
 | [![ci](https://github.com/LAMPSPUC/StateSpaceLearning.jl/actions/workflows/ci.yml/badge.svg)](https://github.com/LAMPSPUC/StateSpaceLearning.jl/actions/workflows/ci.yml) | [![codecov](https://codecov.io/gh/LAMPSPUC/StateSpaceLearning.jl/graph/badge.svg?token=VDpuXvPSI2)](https://codecov.io/gh/LAMPSPUC/StateSpaceLearning.jl) | [![](https://img.shields.io/badge/docs-latest-blue.svg)]( https://lampspuc.github.io/StateSpaceLearning.jl/) | [![Code Style: Blue](https://img.shields.io/badge/code%20style-blue-4495d1.svg)](https://github.com/invenia/BlueStyle)
 
 StateSpaceLearning.jl is a package for modeling and forecasting time series in a high-dimension regression framework.
@@ -257,4 +257,4 @@ The results will be saved in two separated files: "paper_tests/simulation_test/r
 ## Contributing
 
 * PRs such as adding new models and fixing bugs are very welcome!
-* For nontrivial changes, you'll probably want to first discuss the changes via issue.
+* For nontrivial changes, you'll probably want to first discuss the changes via issue.