DOCSP-43862 -- fix install + upgrade errors (#1853)

Author: jvincent-mongodb

source/includes/steps-install-k8s-online-helm.yaml

@@ -50,7 +50,7 @@ content: |
 
   .. code-block::
      
-     helm install enterprise-operator mongodb/enterprise-operator \
+     helm install --upgrade enterprise-operator mongodb/enterprise-operator \
      --namespace mongodb \
      --create-namespace
 ...

source/includes/steps-install-kubectl.yaml

@@ -19,7 +19,7 @@ content: |
 
   .. code-block:: sh
 
-     kubectl apply -f kubectl apply -f https://raw.githubusercontent.com/mongodb/mongodb-enterprise-kubernetes/<version>/mongodb-enterprise.yaml
+     kubectl apply -f https://raw.githubusercontent.com/mongodb/mongodb-enterprise-kubernetes/<version>/mongodb-enterprise.yaml
 ---
 ref: update-meko-kubectl
 stepnum: 3