update readme

README.md

@@ -62,11 +62,14 @@ pm2 start npm --name uptime-kuma -- run start-server -- --port=80 --hostname=0.0
 
 Browse to http://localhost:3001 after started.
 
-### One-click Deploy to DigitalOcean
+### One-click Deploy
 
-[![Deploy to DO](https://www.deploytodo.com/do-btn-blue.svg)](https://cloud.digitalocean.com/apps/new?repo=https://github.com/louislam/uptime-kuma/tree/master&refcode=e2c7eb658434)
+<!---
+Abort. Heroku instance killed the server.js if idle, stupid.
+[![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/louislam/uptime-kuma/tree/1.0.8)
+-->
 
-Choose Cheapest Plan is enough. (US$ 5)
+[![Deploy to DO](https://www.deploytodo.com/do-btn-blue.svg)](https://cloud.digitalocean.com/apps/new?repo=https://github.com/louislam/uptime-kuma/tree/master&refcode=e2c7eb658434)
 
 # How to Update