Fix typo in feature gates example

Signed-off-by: Dimitrios Karagiannis <[email protected]>

Author: alkar

variables.tf

@@ -208,7 +208,7 @@ variable "feature_gates" {
   description = "https://kubernetes.io/docs/reference/command-line-tools-reference/feature-gates/"
   type        = map(string)
 
-  # yaml fragment for config file use, example default feature gates:
+  # example default feature gates:
   # ```
   # default = {
   #   "ExpandPersistentVolumes"   = "true"