Logo added and readme updated (#24)

* Add files via upload
* Update README.md

README.md

@@ -1,3 +1,5 @@
+ <p align="left"><img src="logo/horizontal.png" alt="Camelotia" height="80px"></p>
+
 [![Build Status](https://worldbeater.visualstudio.com/Camelotia/_apis/build/status/Camelotia-CI)](https://worldbeater.visualstudio.com/Camelotia/_build/latest?definitionId=1) [![Pull Requests](https://img.shields.io/github/issues-pr/worldbeater/camelotia.svg)](https://github.com/worldbeater/Camelotia/pulls) [![Issues](https://img.shields.io/github/issues/worldbeater/camelotia.svg)](https://github.com/worldbeater/Camelotia/issues) ![License](https://img.shields.io/github/license/worldbeater/camelotia.svg) ![Size](https://img.shields.io/github/repo-size/worldbeater/camelotia.svg) [![Code Coverage](https://img.shields.io/azure-devops/coverage/worldbeater/Camelotia/1.svg)](https://worldbeater.visualstudio.com/Camelotia/_build/latest?definitionId=1)
 
 File manager for cloud storages. Supports Yandex Disk, Google Drive, VK Documents, GitHub, FTP, SFTP. The app runs on Windows, Linux, MacOS, XBox, Surface Hub and HoloLens. Built with [ReactiveUI](https://github.com/reactiveui/ReactiveUI).