How to link to a category without categorizing the page
Category links don't work like other links. Instead, they go invisible and put the page in the category specified. For example, if you write a message that says I think [[Category:Living people]] would be appropriate", it will appear as "I think would be appropriate" and the talk page you wrote the message on will be added to the Living people category. The link disappeared!
Sometimes it is useful to provide links to categories, such for listing categories on portals, or when you are discussing categories.
To make category links work like normal links, add a colon after the opening brackets. Then "I think [[:Category:Living people]] would be appropriate", appears as "I think Category:Living people would be appropriate".
To add this auto-updating template to your user page, use{{totd-tomorrow}}
Today's featured picture
The Hass avocado is a variety of avocado with dark green, bumpy skin. It was first grown and sold by the American horticulturist Rudolph Hass, who also gave it his name. The Hass is one of the most commercially popular avocado cultivars and accounts for more than 80 percent of the crop in the United States. This is due to its taste, size, shelf-life, high growing yield and in some areas, year-round harvesting. The fruit has a mass of 200 to 300 grams (8 to 10 ounces) and, when ripe, its skin becomes a dark purplish-black that yields to gentle pressure. The centre part of the inner fruit then becomes white-green. This picture shows a whole and a halved Hass avocado, cultivated in Colombia. The photograph was focus-stacked from 12 separate images.