[Docs] Update badges

Author: mtfishman

docs/src/index.md

@@ -5,11 +5,35 @@ tensor network algorithms.
 
 | **Documentation**|**Citation**|**Build Status**|
 |:----------------:|:----------:|:--------------:|
-| [![docs](https://img.shields.io/badge/docs-latest-blue.svg)](https://itensor.github.io/ITensors.jl/dev/)|[![SciPost](https://img.shields.io/badge/SciPost-10.21468-blue.svg)](https://scipost.org/SciPostPhysCodeb.4) [![arXiv](https://img.shields.io/badge/arXiv-2007.14822-b31b1b.svg)](https://arxiv.org/abs/2007.14822) |[![Tests](https://github.com/ITensor/ITensors.jl/workflows/TestITensors/badge.svg)](https://github.com/ITensor/ITensors.jl/actions?query=workflow%3ATestITensors) [![codecov](https://codecov.io/gh/ITensor/ITensors.jl/tree/main/graph/badge.svg)](https://app.codecov.io/gh/ITensor/ITensors.jl/tree/main)|
+| [![docs][docs-dev-img]][docs-dev-url]|[![SciPost][citation-img]][citation-url] [![arXiv][preprint-img]][preprint-url] |[![Tests][tests-img]][tests-url]|
 
 |**Version**|**Download Statistics**|**Style Guide**|**License**|
 |:---------:|:---------------------:|:-------------:|:---------:|
-|[![version](https://juliahub.com/docs/ITensors/version.svg)](https://juliahub.com/ui/Packages/ITensors/P3pqL)|[![ITensor Downloads](https://img.shields.io/badge/dynamic/json?url=http%3A%2F%2Fjuliapkgstats.com%2Fapi%2Fv1%2Fmonthly_downloads%2FITensors&query=total_requests&suffix=%2Fmonth&label=Downloads)](http://juliapkgstats.com/pkg/ITensors)|[![Code Style: Blue](https://img.shields.io/badge/code%20style-blue-4495d1.svg)](https://github.com/invenia/BlueStyle)|[![license](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](https://github.com/ITensor/ITensors.jl/blob/main/LICENSE)|
+|[![version][version-img]][version-url]|[![ITensor Downloads][downloads-img]][downloads-url]|[![Code Style: Blue][codestyle-img]][codestyle-url]|[![license][license-img]][license-url]|
+
+[docs-dev-img]: https://img.shields.io/badge/docs-latest-blue.svg
+[docs-dev-url]: https://itensor.github.io/ITensors.jl/dev
+
+[citation-img]: https://img.shields.io/badge/SciPost-10.21468-blue.svg
+[citation-url]: https://scipost.org/SciPostPhysCodeb.4
+
+[preprint-img]: https://img.shields.io/badge/arXiv-2007.14822-b31b1b.svg
+[preprint-url]: https://arxiv.org/abs/2007.14822
+
+[tests-img]: https://github.com/ITensor/ITensors.jl/workflows/Run+ITensorMPS+tests+(Ubuntu)/badge.svg
+[tests-url]: https://github.com/ITensor/ITensors.jl/actions?query=workflow%3ARun+ITensorMPS+tests+(Ubuntu)
+
+[version-img]: https://juliahub.com/docs/ITensors/version.svg
+[version-url]: https://juliahub.com/ui/Packages/ITensors/P3pqL
+
+[downloads-img]: https://img.shields.io/badge/dynamic/json?url=http%3A%2F%2Fjuliapkgstats.com%2Fapi%2Fv1%2Fmonthly_downloads%2FITensors&query=total_requests&suffix=%2Fmonth&label=Downloads
+[downloads-url]: http://juliapkgstats.com/pkg/ITensors
+
+[codestyle-img]: https://img.shields.io/badge/code%20style-blue-4495d1.svg
+[codestyle-url]: https://github.com/invenia/BlueStyle
+
+[license-img]: https://img.shields.io/badge/License-Apache_2.0-blue.svg
+[license-url]: https://github.com/ITensor/ITensors.jl/blob/main/LICENSE
 
 The source code for ITensor can be found [on Github](https://github.com/ITensor/ITensors.jl).