Fix formatting issues

docs/source/bundles/activity.md

@@ -1,16 +1,7 @@
-Permission is granted to copy, distribute and/or modify this document
-   under the terms of the GNU Free Documentation License, Version 1.3
-   or any later version published by the Free Software Foundation;
-   with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
-   A copy of the license is included in the section entitled "GNU
-   Free Documentation License".
-
 # Activity bundle
 
 This bundle provides the ability to record people in the software. This bundle is required by other bundle.
 
-   :local:
-
 ###### Entities provided
 
    Describe the entities provided.
@@ -21,11 +12,13 @@ Those options are available under `chill_activity` key.
 
 Example of configuration:
 
+```yaml
    chill_activity:
       form:
          time_duration:
             - { label: '12 minutes', seconds: 720 }
             - { label: '30 minutes', seconds: 1800 }
+```
 
 form.time_duration *array*
    The duration which might be suggested when the user create or update an activity. The value must be an array of object, where each object must have a `label` and a `seconds` key. The label provide which is shown to user (the label will be translated, if possible) and the seconds the duration.
@@ -48,6 +41,7 @@ Macro envelope
 When to use this macro ?
    When you want to represent an activity reason.
 Example usage :
+
    ```jinja
    {% import 'ChillActivityBundle:ActivityReason:macro.html.twig' as m %}