Adds build and license shields to README.md (#1641)

* First stab at a Github status bar

* Adds a .tokeignore file for counting lines of code accurately

* Yanks lines of code calculation since it wildly overcounts

README.md

@@ -2,6 +2,9 @@ HDF5 version 1.13.2-1 currently under development
 
 ![HDF5 Logo](doxygen/img/HDF5.png)
 
+[![Build](https://img.shields.io/github/workflow/status/HDFGroup/hdf5/hdf5%20dev%20CI/develop)](https://github.com/HDFGroup/hdf5/actions?query=branch%3Adevelop)
+[![BSD](https://img.shields.io/badge/License-BSD-blue.svg)](https://github.com/HDFGroup/hdf5/blob/develop/COPYING)
+
 *Please refer to the release_docs/INSTALL file for installation instructions.*
 
 THE HDF GROUP