docs: fix documentation for cluster discovery

Use the real value in an example.

Signed-off-by: Alexey Palazhchenko <alexey.palazhchenko@talos-systems.com>

hack/docgen/main_test.go

@@ -0,0 +1,18 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+package main
+
+import (
+	"path/filepath"
+	"testing"
+)
+
+// This test mainly exist for easier debugging with debugger.
+func TestProcessFile(t *testing.T) {
+	inputFile := filepath.Join("..", "..", "pkg", "machinery", "config", "types", "v1alpha1", "v1alpha1_types.go")
+	outputFile := filepath.Join(t.TempDir(), "out.go")
+	typeName := "Configuration"
+	processFile(inputFile, outputFile, typeName)
+}

pkg/machinery/config/types/v1alpha1/v1alpha1_types.go

@@ -1999,7 +1999,7 @@ type RegistryServiceConfig struct {
 	RegistryDisabled bool `yaml:"disabled,omitempty"`
 	// description: |
 	//   External service endpoint.
-	//   examples:
-	//     - value: 'constants.DefaultDiscoveryServiceEndpoint'
+	// examples:
+	//   - value: constants.DefaultDiscoveryServiceEndpoint
 	RegistryEndpoint string `yaml:"endpoint,omitempty"`
 }

website/content/docs/v0.13/Reference/configuration.md

@@ -5500,8 +5500,16 @@ Disable external service discovery registry.
 <div class="dt">
 
 External service endpoint.
-examples:
-  - value: 'constants.DefaultDiscoveryServiceEndpoint'
+
+
+
+Examples:
+
+
+``` yaml
+endpoint: https://discovery.talos.dev/
+```
+
 
 </div>