doc: fix mapstructure configuration comments

Signed-off-by: Jan Larwig <jan@larwig.com>

pkg/apis/options/load.go

@@ -95,10 +95,10 @@ func Decode(input interface{}, result interface{}) error {
 		),
 		Metadata:             nil,    // Don't track any metadata
 		Result:               result, // Decode the result into the prefilled options
-		TagName:              "yaml", // Parse all fields that use the json tag
+		TagName:              "yaml", // Parse all fields that use the yaml tag
 		ZeroFields:           false,  // Don't clean the default values from the result map (options)
 		ErrorUnused:          true,   // Throw an error if keys have been used that aren't mapped to any struct fields
-		IgnoreUntaggedFields: true,   // Ignore fields in structures that aren't tagged with json
+		IgnoreUntaggedFields: true,   // Ignore fields in structures that aren't tagged with yaml
 	})
 	if err != nil {
 		return fmt.Errorf("error creating decoder for config: %w", err)