Add logos and update the repository header (#67)

Author: oleg-nenashev

README.md

@@ -1,8 +1,14 @@
 # Python WireMock Admin API Client
 
+<p align="center">
+    <a href="https://wiremock.org/docs/solutions/python/" target="_blank">
+        <img width="512px" src="docs/images/python-wiremock-horizontal.png" alt="WireMock Logo"/>
+    </a>
+</p>
+
 This is a python admin API client to a standalone WireMock server.
 
-[![Build Status](https://travis-ci.org/wiremock/python-wiremock.svg?branch=master)](https://travis-ci.org/wiremock/python-wiremock)
+[![a](https://img.shields.io/badge/slack-%23wiremock%2Fpython-brightgreen?style=flat&logo=slack)](https://slack.wiremock.org/)
 [![Coverage Status](https://coveralls.io/repos/github/wiremock/python-wiremock/badge.svg?branch=master)](https://coveralls.io/github/wiremock/python-wiremock?branch=master)
 [![Docs](https://img.shields.io/badge/docs-latest-brightgreen.svg)](http://wiremock.readthedocs.org/)