remove pip progress bar from travis

.travis.yml

@@ -4,7 +4,7 @@ python:
   - "3.6"
 # command to install dependencies
 install:
-  - pip install -r requirements.txt
+  - pip install --progress-bar off -r requirements.txt
   - python setup.py install
 # tests
 script:

README.md

 # TopologyLayer
 
+Build Status: [![Build Status](https://travis-ci.com/bruel-gabrielsson/TopologyLayer.svg?branch=master)](https://travis-ci.com/bruel-gabrielsson/TopologyLayer)
+
 This repository contains a Python package that implements PyTorch-compatible persistent homology layers, as well as featurization of the output.
 
 For an introduction to this topic, see the preprint **A Topology Layer for Machine Learning**, [arxiv:1905.12200](https://arxiv.org/abs/1905.12200)