update readme, add mondey backend

Author: lkeegan

.upptimerc.yml

@@ -6,6 +6,9 @@ sites:
     url: https://ssc.uni-heidelberg.de
   - name: MONDEY
     url: https://mondey.de
+  - name: MONDEY backend
+    url: https://mondey.de/api/languages/
+    method: GET
   - name: PredicTCR
     url: https://predictcr.com
   - name: SampleFlow

README.md

@@ -1,5 +1,7 @@
 # [📈 Live Status](https://lkeegan.github.io/monitoring): <!--live status--> **🟩 All systems operational**
 
+Basic monitoring of SSC websites and web services using [upptime](https://github.com/upptime) - to add a website, edit [.upptimerc.yml](.upptimerc.yml).
+
 <!--start: status pages-->
 <!-- This summary is generated by Upptime (https://github.com/upptime/upptime) -->
 <!-- Do not edit this manually, your changes will be overwritten -->