Image component attribution to Dec 2nd newsletter

Image attributions:

Dandelion: By Beeblebrox at English Wikipedia, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=11393040
https://americanart.si.edu/artwork/prayer-rain-274

Plantago: By sannse - Originally uploaded to English Wikipedia as Ribwort 600.jpg, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=2149536

Sweet flag: By KENPEI - KENPEI's photo, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=2222151

Water celery: By KENPEI - KENPEI's photo, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=2343517