fix-up typo

Signed-off-by: Nyuxiaobo <yuxiaobogo@163.com>

CHANGELOG.md

@@ -784,7 +784,7 @@ Huge thank you for this release towards our contributors:
 
 * Issue #3037 change dependency management to dep [#3136](https://github.com/kubernetes/minikube/pull/3136)
 * Update dashboard version to v1.10.0 [#3122](https://github.com/kubernetes/minikube/pull/3122)
-* fix: --format outputs any string, --https only subsitute http URL scheme [#3114](https://github.com/kubernetes/minikube/pull/3114)
+* fix: --format outputs any string, --https only substitute http URL scheme [#3114](https://github.com/kubernetes/minikube/pull/3114)
 * Change default docker storage driver to overlay2 [#3121](https://github.com/kubernetes/minikube/pull/3121)
 * Add env variable for default ES_JAVA_OPTS [#3086](https://github.com/kubernetes/minikube/pull/3086)
 * fix(cli): `minikube start --mount --mountsting` without write permission [#2671](https://github.com/kubernetes/minikube/pull/2671)

cmd/minikube/cmd/config/prompt.go

@@ -149,7 +149,7 @@ func posString(slice []string, element string) int {
 	return -1
 }
 
-// containsString returns true iff slice contains element
+// containsString returns true if slice contains element
 func containsString(slice []string, element string) bool {
 	return !(posString(slice, element) == -1)
 }