Merge pull request #133 from NETWAYS/docs/readme

Update README

Author: martialblog

README.md

@@ -6,6 +6,8 @@ Other Icinga and Prometheus integrations we provide:
 
 * https://github.com/NETWAYS/icinga2-exporter
 * https://github.com/NETWAYS/icingaweb2-module-perfdatagraphs-prometheus
+* https://github.com/NETWAYS/alertmanager-icinga-bridge
+* https://github.com/NETWAYS/notify-alertmanager
 
 ## Usage