Hints for wmforecast in main

Hints

• asv-summary-first-word-not-capitalized
  :5 -
  The summary text does not start with a capitalized word, project name or number.
• screenshot-no-thumbnails
  No thumbnails have been generated for screenshot 'https://wmforecast.friedcheese.org/wmforecast.png'.
  This could mean that the original provided screenshot is too small to generate thumbnails from.