Added Railway Deployment Method

Author: FraglyG

README.md

@@ -154,6 +154,7 @@ Dashy supports **1-Click deployments** on several popular cloud platforms. To sp
 - [<img src="https://i.ibb.co/d2P1WZ7/heroku.png" width="18"/> Deploy to Heroku](https://heroku.com/deploy?template=https://github.com/Lissy93/dashy)
 - [<img src="https://i.ibb.co/Ld2FZzb/vercel.png" width="18"/> Deploy to Vercel](https://vercel.com/new/project?template=https://github.com/lissy93/dashy)
 - [<img src="https://i.ibb.co/xCHtzgh/render.png" width="18"/> Deploy to Render](https://render.com/deploy?repo=https://github.com/lissy93/dashy/tree/deploy_render)
+- [<img src="https://railway.app/brand/logo-light.png" width="18"/> Deploy to Railway](https://railway.app/template/MtdjAQ?referralCode=app)
 - [<img src="https://i.ibb.co/J7MGymY/googlecloud.png" width="18"/> Deploy to GCP](https://deploy.cloud.run/?git_repo=https://github.com/lissy93/dashy.git)
 - [<img src="https://i.ibb.co/HVWVYF7/docker.png" width="18"/> Deploy to PWD](https://labs.play-with-docker.com/?stack=https://raw.githubusercontent.com/Lissy93/dashy/master/docker-compose.yml)
 - [<img src="https://i.ibb.co/7NxnM2P/easypanel.png" width="18"/> Deploy to Easypanel](https://easypanel.io/docs/templates/dashy)

docs/deployment.md

@@ -33,6 +33,7 @@ Once you've got Dashy up and running, you'll want to configure it with your own
     - [Google Cloud Platform](#google-cloud-platform)
     - [Platform.sh](#platformsh)
     - [Render](#render)
+    - [Railway](#railway)
     - [Scalingo](#scalingo)
     - [Play-with-Docker](#play-with-docker)
     - [Surge.sh](#surgesh)
@@ -278,6 +279,16 @@ To deploy Dashy to Render, use the following link
 https://render.com/deploy?repo=https://github.com/lissy93/dashy/tree/deploy_render
 ```
 
+### Railway
+
+[![Deploy on Railway](https://railway.app/button.svg)](https://railway.app/template/MtdjAQ?referralCode=app)
+
+[Railway](https://railway.app/) is a Platform as a Service (PaaS) that offers a complete platform for building and delivering programs to the backend of the cloud. You bring your code and Railway does the rest. Railway offers an extremely good developer experience and makes it effortless to deploy apps. Railway offers a free Trial Plan, and paid plans start at $5/month. Railway has 4 server locations: US-west, US-east, EU-west and ASIA-South-East.
+
+```text
+https://railway.app/template/MtdjAQ
+```
+
 ### Scalingo
 
 [![Deploy on Scalingo](https://i.ibb.co/nj0KxyH/deploy-scalingo-button.png)](https://my.scalingo.com/deploy?source=https://github.com/lissy93/dashy#master)