Merge pull request #558 from ChristianLempa:553-renovate-+-traefik-gnutls_handshake-failed-error-in-protocol-version

fix for tls example

docker-compose/traefik/config/conf.d/tls.yaml.example

@@ -0,0 +1,17 @@
+# -- Change TLS Configuration here...
+tls:
+  options:
+    default:
+      minVersion: VersionTLS12
+      sniStrict: true
+      curvePreferences:
+        - CurveP256
+        - CurveP384
+        - CurveP521
+      cipherSuites:
+        - TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
+        - TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
+        - TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
+        - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
+        - TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
+        - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305