Update documentation links (#128)

Signed-off-by: Wouter Born <eclipse@maindrain.net>

Author: wborn

README.md

@@ -1,6 +1,6 @@
 # openHAB Synology DiskStation Install Package
 
-This project build a Synology DiskStation SPK install package for [openHAB](http://openhab.org) (Home Automation Server).
+This project build a Synology DiskStation SPK install package for [openHAB](https://www.openhab.org) (Home Automation Server).
 
 Comments, suggestions and contributions are welcome!
 
@@ -21,7 +21,7 @@ The second log `openHAB-start-stop.log` will be generated by starting and stoppi
 
 ## Documentation
 
-Installation und Prerequisite Install Java Documentation: [Official openHAB Usage Manual](http://docs.openhab.org/installation/synology.html)
+Installation und Prerequisite Install Java Documentation: [Official openHAB Usage Manual](https://www.openhab.org/docs/installation/synology.html)
 
 For usage of serial devices you need to check if openhab user has the appropriate rights to access the device in `/dev` and to create lock files in `/run/lock`