add bool var to examples

example/demo-role/README.md

@@ -10,6 +10,8 @@ the default description with an annotation.
 
 - [Requirements](#requirements)
 - [Default Variables](#default-variables)
+  - [demo_bool](#demo_bool)
+  - [demo_bool_up](#demo_bool_up)
   - [demo_role_deprecated](#demo_role_deprecated)
   - [demo_role_deprecated_info](#demo_role_deprecated_info)
   - [demo_role_dict](#demo_role_dict)
@@ -35,6 +37,34 @@ the default description with an annotation.
 
 ## Default Variables
 
+### demo_bool
+
+#### Default value
+
+```YAML
+demo_bool: true
+```
+
+#### Example usage
+
+```YAML
+demo_bool: false
+```
+
+### demo_bool_up
+
+#### Default value
+
+```YAML
+demo_bool_up: true
+```
+
+#### Example usage
+
+```YAML
+demo_bool_up: 'False'
+```
+
 ### demo_role_deprecated
 
 **_Deprecated_**<br />

example/demo-role/defaults/main.yml

@@ -6,6 +6,9 @@ demo_role_unset:
 demo_role_empty: ""
 demo_role_single: "b"
 
+# @var demo_bool:example: $ false
+demo_bool: true
+
 # @var demo_role_empty_dict:description: >
 # ... or valid json can be used. In this case, the json will be automatically prefixed with the annotation key
 # and filters like `to_nice_yaml` can be used in templates. To get it working, the json need to be prefixed with a `$`.