Update README.md

Author: ewu63

README.md

@@ -1,26 +1,23 @@
-pyHyp
-=====
+# pyHyp
+[![Build Status](https://travis-ci.com/mdolab/pyhyp.svg?branch=master)](https://travis-ci.com/mdolab/pyhyp)
 
 pyHyp uses hyperbolic volume mesh marching schemes to extrude structured surface meshes into volume meshes.
 pyHyp is used as a preprocessing step in the geometry and mesh-creation process prior to an optimization.
 
-Documentation
--------------
+## Documentation
 
 Please see the [documentation](http://mdolab.engin.umich.edu/docs/packages/pyhyp/doc/index.html) for installation details and API documentation.
 
 To locally build the documentation, enter the `doc` folder and enter `make html` in terminal.
 You can then view the built documentation in the `_build` folder.
 
 
-Citation
---------
+## Citation
 
 pyHyp is based on the theory presented in "Enhancements of a three-dimensional hyperbolic grid generation scheme."
 For more background, theory, and figures, see the original [journal article](https://doi.org/10.1016/0096-3003(92)90073-A).
 
-How pyHyp fits within MACH
---------------------------
+## How pyHyp fits within MACH
 
 pyHyp takes structured surface meshes and extrudes them into structured volume meshes.
 This is done as a pre-processing step.
@@ -30,7 +27,6 @@ An example [XDSM](https://github.com/mdolab/pyXDSM) for an optimization setup th
 
 ![pySurf XDSM diagram](doc/images/pysurf_xdsm.png)
 
-License
--------
+## License
 
 Copyright 2019 MDO Lab. See the LICENSE file for details.