(DOCSP-11667, -12384): Fixes from user feedback (#401)

* (DOCSP-11667): spec.featureCompatibilityVersion wrong type

* (DOCSP-12384): Knowns issues of 1.7.1: delete pod should be delete deployment

Author: melissamahoney-mongodb

source/includes/options-k8s-standalone.yaml

@@ -69,7 +69,7 @@ replacement:
 ---
 program: k8sSaConf
 name: spec.featureCompatibilityVersion
-type: number
+type: string
 directive: setting
 optional: false
 inherit:

source/release-notes.txt

@@ -151,7 +151,7 @@ Known Issues
 - You cannot use MongoDB 4.4 as an application database for an |onprem|
   resource.
 - When you upgrade to the |k8s-op-short| 1.7.1, you might have to delete
-  the ``mongodb-enterprise-operator`` |k8s-pod| due to deployment
+  the ``mongodb-enterprise-operator`` deployment due to deployment
   configuration changes.
 
   This is a safe operation. Deleting the