Update the note ragarding matchLabels vs matchExpressions in the Deployment document

Author: dec5e

content/en/docs/concepts/workloads/controllers/deployment.md

@@ -54,7 +54,7 @@ In this example:
   {{< note >}}
   The `.spec.selector.matchLabels` field is a map of {key,value} pairs.
   A single {key,value} in the `matchLabels` map is equivalent to an element of `matchExpressions`,
-  whose key field is "key" the operator is "In", and the values array contains only "value".
+  whose `key` field is "key", the `operator` is "In", and the `values` array contains only "value".
   All of the requirements, from both `matchLabels` and `matchExpressions`, must be satisfied in order to match.
   {{< /note >}}