Updated README

Author: winromulus

README.md

@@ -1,20 +1,16 @@
 # SFTP ([SSH File Transfer Protocol](https://en.wikipedia.org/wiki/SSH_File_Transfer_Protocol)) server using [OpenSSH](https://en.wikipedia.org/wiki/OpenSSH)
 This project provides a Docker image for hosting a SFTP server. Included are `Docker` (`docker-cli` and `docker-compose`) and `Kubernetes` (`kubectl` and `helm`) deployment scripts
 
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 > Supports architectures: `amd64`, `arm` and `arm64`
 
 ### Support
 If you need help or found a bug, please feel free to open an issue on the [emberstack/docker-sftp](https://github.com/emberstack/docker-sftp) GitHub project.  
-  
-You can also join our Slack workspace and talk to us:  
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 ## Usage