Update README by removing chat badge and screenshot

Removed Gitter chat badge and a broken link to a deleted screenshot from the README.

Author: djsmith85

README.md

@@ -1,5 +1,4 @@
 ![Build](https://github.com/bitwarden/directory-connector/workflows/Build/badge.svg)
-[![Join the chat at https://gitter.im/bitwarden/Lobby](https://badges.gitter.im/bitwarden/Lobby.svg)](https://gitter.im/bitwarden/Lobby)
 
 # Bitwarden Directory Connector
 
@@ -17,8 +16,6 @@ The application is written using Electron with Angular and installs on Windows,
 
 [![Platforms](https://imgur.com/SLv9paA.png "Windows, macOS, and Linux")](https://bitwarden.com/help/directory-sync/#download-and-install)
 
-![Directory Connector](https://raw.githubusercontent.com/bitwarden/brand/master/screenshots/directory-connector-macos.png "Dashboard")
-
 ## Command-line Interface
 
 A command-line interface tool is also available for the Bitwarden Directory Connector. The Directory Connector CLI (`bwdc`) is written with TypeScript and Node.js and can also be run on Windows, macOS, and Linux distributions.