Tango-controls GitHub badge

[Ingvord]

Hi,

I have created a GitHub badge for tango-controls:

Markdown:

[![TangoControls](https://img.shields.io/badge/-Tango--Controls-7ABB45.svg?style=flat&logo=%20data%3Aimage%2Fpng%3Bbase64%2CiVBORw0KGgoAAAANSUhEUgAAACAAAAAkCAYAAADo6zjiAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAALEwAACxMBAJqcGAAAAsFJREFUWIXtl01IFVEYht9zU%2FvTqOxShLowlOgHykWUGEjUKqiocB1FQURB0KJaRdGiaFM7gzZRLWpTq2olhNQyCtpYCP1gNyIoUTFNnxZzRs8dzvw4Q6564XLnfOf73vedc2a%2BmZEKALgHrC3CUUR8CxZFeEoFalsdM4uLmMgFoIlZLJp3A9ZE4S2oKehhlaR1BTnyg2ocnW%2FxsxEDhbYij4EPVncaeASMAavnS%2FwA8NMaqACNQCew3f4as3KZOYh2SuqTVJeQNiFpn6QGSRVjTH9W%2FiThvcCn6H6n4BvQDvQWFT%2BSIDIFDAKfE3KOAQeBfB0XGPeQvgE67P8ZoB44DvTHmFgJdOQRv%2BUjc%2BavA9siNTWemgfA3TwGquCZ3w8szFIL1ALngIZorndvgJOR0GlP2gtJkzH%2Bd0fGFxW07NqY%2FCrx5QRXcYjbCbmxF1dkBSbi8kpACah3Yi2Sys74cVyxMWY6bk5BTwgRe%2BYlSzLmxNpU3aBeJogk4XWWpJKUeiap3RJYCpQj4QWZDQCuyIAk19Auj%2BAFYGZZjTGjksaBESB8P9iaxUBIaJzjZcCQcwHdj%2BS2Al0xPOeBYYKHk4vfmQ3Y8YkIwRUb7wQGU7j2ePrA1URx93ayd8UpD8klyPbSQfCOMIO05MbI%2BDvwBbjsMdGTwlX21AAMZzEerkaI9zFkP4AeYCPBg6gNuEb6I%2FthFgN1KSQupqzoRELOSed4DGiJala1UmOMr2U%2Bl%2FTWEy9Japa%2Fy41IWi%2FJ3d4%2FkkaAw0Bz3AocArqApwTvet3O3GbgV8qqjAM7bf4N4KMztwTodcYVyelywKSCD5V3xphNXoezuTskNSl4bgxJ6jPGVJJqbN0aSV%2Bd0M0aO7FCs19Jo2lExphXaTkxdRVgQFK7DZVDZ8%2BcpdmQh3wuILh7ut3AEyt%2B51%2BL%2F0cUfwFOX0t0StltmQAAAABJRU5ErkJggg%3D%3D)](http://www.tango-controls.org)

Anyone can use it in their repo to indicate that the project belongs (or related) to TangoControls

:)