Update README.md

Added DOI to README

README.md

@@ -1,6 +1,6 @@
-|   **`Status`**   | **`Coverage`**  |   **`Docs`**    |  **`Site Release`**  |   **`Style`**    |
-|-----------------|-----------------|-----------------|-----------------| -----------------|
-[![Continous Integration](https://github.com/CHIMEFRB/voe/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/CHIMEFRB/voe/actions/workflows/ci.yml) | [![Coverage Status](https://coveralls.io/repos/github/CHIMEFRB/voe/badge.svg?branch=main)](https://coveralls.io/github/CHIMEFRB/voe?branch=main) | `TBA` | `2024.05.xx` | [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://black.readthedocs.io/en/stable/) |
+|   **`Status`**   | **`Coverage`**  |   **`Docs`**    |  **`Site Release`**  |   **`Style`**    |  **`DOI`**  |
+|-----------------|-----------------|-----------------|-----------------|-----------------|-----------------|
+[![Continous Integration](https://github.com/CHIMEFRB/voe/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/CHIMEFRB/voe/actions/workflows/ci.yml) | [![Coverage Status](https://coveralls.io/repos/github/CHIMEFRB/voe/badge.svg?branch=main)](https://coveralls.io/github/CHIMEFRB/voe?branch=main) | `TBA` | `2024.05.xx` | [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://black.readthedocs.io/en/stable/) | [![DOI](https://zenodo.org/badge/791380073.svg)](https://doi.org/10.5281/zenodo.14008363) |
 ---
 
 # frb-voe : An FRB Virtual Observatory Event Service
@@ -128,4 +128,4 @@ All motivated community members are welcomed and encouraged to contribute to the
 
 The repository is formatted according to pre-commit, to run pre-commit locally, use: 
 
-```pre-commit run --all-files```
+```pre-commit run --all-files```