add badges to README

README.md

@@ -1,5 +1,7 @@
 # whereistheplanet?
 Prediciting the position of exoplanets. Web version is available at https://www.whereistheplanet.com/. Credit: Jason Wang, Matas Kulikauskas, and Sarah Blunt. 
+
+![Teseting Badge](https://github.com/semaphoreP/whereistheplanet/actions/workflows/ci-tests.yml/badge.svg) [![ASCL Reference](https://img.shields.io/badge/ascl-2101.003-blue.svg?colorB=262255)](https://ascl.net/2101.003)
 
 ## Install
 Requires `orbitize!` (https://github.com/sblunt/orbitize/) and `git-lfs` to pull the posteriors. After you clone the repositroy and use `git lfs pull` to pull the posteriors, install using 
@@ -28,4 +30,4 @@ whereistheplanet --list
 
 If you used this for your research, please cite the [ASCL entry](https://ascl.net/2101.003) of it:
 
-    Wang, J. J., Kulikauskas, M., Blunt, S. 2021, Astrophysics Source Code Library, ascl:2101.003
+    Wang, J. J., Kulikauskas, M., Blunt, S. 2021, Astrophysics Source Code Library, ascl:2101.003