[stable/redis] typo fix: persitent->persistent (#5448)

* Update Chart.yaml

* Update values.yaml

stable/redis/Chart.yaml

@@ -1,5 +1,5 @@
 name: redis
-version: 3.2.0
+version: 3.2.1
 appVersion: 4.0.9
 description: Open source, advanced key-value store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets.
 keywords:

stable/redis/values.yaml

@@ -70,7 +70,7 @@ password:
 ## Use existing secret (ignores previous password)
 # existingSecret:
 
-## Persist data to a persitent volume
+## Persist data to a persistent volume
 persistence: {}
   ## A manually managed Persistent Volume and Claim
   ## Requires persistence.enabled: true