enhance README documentation for CRDs

.github/workflows/rust.yml

@@ -30,9 +30,6 @@ jobs:
     - name: Install required cargo
       run: cargo install clippy-sarif sarif-fmt
 
-    - name: Check OpenSSL
-      run: (! cargo tree -i openssl 2> /dev/null)
-
     - name: Build with cargo
       run: cargo build --verbose
 

README.md

@@ -152,7 +152,7 @@ metadata:
   namespace: mcexport
 spec:
   prober:
-    url: 'mcexport.mcexport:10026'
+    url: 'mcexport.mcexport.cluster.local:10026'
   interval: 60s
   scrapeTimeout: 30s
   targets:
@@ -162,6 +162,10 @@ spec:
       - 'example.com'
 ```
 
+Depending on your setup, you may also need to add a label, so that the configuration is picked up by your Prometheus
+instance. If you've installed it through the `kube-prometheus-stack` helm chart, it could, for example, be
+`release: kube-prometheus-stack`. You can check the required labels in your Prometheus CRD.
+
 ## Reporting Security Issues
 
 To report a security issue for this project, please note our [Security Policy][security-policy].