Hints for devhelp in main

Hints

• metainfo-validation-hint
  Validation of the metainfo file yielded the following hint: The component summary should not end with a "." [Een ontwikkelhulpmiddel voor het bladeren en zoeken door API-documentatie.]
• metainfo-validation-hint
  Validation of the metainfo file yielded the following hint: The component summary should not end with a "." [Brskalnik dokumentacije API, namenjen razvijalcem programske opreme.]