Fix typo in examples

Signed-off-by: Matthias Goerens <mgoerens@redhat.com>

Author: mgoerens

examples/05-deploying-mautrixsignal/B-using-existing-configmap/mautrixsignal.yaml

@@ -4,6 +4,6 @@ metadata:
   name: mautrixsignal-for-synapse
 spec:
   configMap:
-    name: my-custom-mautrixignal-config
+    name: my-custom-mautrixsignal-config
   synapse:
-    name: synapse-with-mautrixsignal
+    name: synapse-with-mautrixsignal