Change ui:options to ui:backstage

Signed-off-by: chicoribas <chico.bribas@gmail.com>

docs/features/software-templates/writing-templates.md

@@ -231,7 +231,7 @@ spec:
 
 Sometimes, specially in custom fields, you collect some data on Create form that
 must note be shown to the user on Review step. To hide or mask this data, you
-can set some properties of `ui:options`:
+can use `ui:widget: password` or set some properties of `ui:backstage`:
 
 ```yaml
 - title: Hide or mask values
@@ -243,13 +243,13 @@ can set some properties of `ui:options`:
     masked:
       title: Masked
       type: string
-      ui:options:
+      ui:backstage:
         review:
           mask: '<some-value-to-show>' # will print '<some-value-to-show>' as value for property 'Masked' on Review Step
     hidden:
       title: Hidden
       type: string
-      ui:options:
+      ui:backstage:
         review:
           show: false # wont print any info about 'hidden' property on Review Step
 ```