[Docs] Link to specfile examples

[michaelstingl]

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[mmattel]

It is better to export the example files and put them into docs/modules/ROOT/examples.
Then link them properly into the text.
Examples outside docs tend to get lost in case of link changes and do not look professional, while examples inside docs are always part of docs. We have a lot of examples as part of docs for core, you can take a look.

[mmattel]

Closing via: owncloud/docs-client-ios-app#16