Update README.md

RvNovae · web-flow · commit 9ad44e2e0b4b · 2021-03-12T20:37:25.000+01:00
diff --git a/README.md b/README.md
@@ -56,3 +56,4 @@ Here are some technical details for the curious:
 
 * app and server software are both written in Kotlin
 * server software is a Spring Boot Application running in the cloud
+* subscriptions & notifications are handled through Firebase Cloud Messaging

Original file line number	Diff line number	Diff line change
`@@ -56,3 +56,4 @@ Here are some technical details for the curious:`
`56`	`56`
`57`	`57`	`* app and server software are both written in Kotlin`
`58`	`58`	`* server software is a Spring Boot Application running in the cloud`
	`59`	`+* subscriptions & notifications are handled through Firebase Cloud Messaging`