Template talk:Set category

Requesting: Examples using parameter: single
As the single parameter is recommended: "All parameters are optional; however, the single parameter is recommended." Let's have some examples of such, please.

Template-protected edit request on 6 September 2020
Please apply Special:Diff/872446842/976981437 to add new parameter nocat to allow suppression of automatic categorization. This is needed for demonstration purposes, like on the page Template index/Category namespace. —⁠andrybak (talk) 06:47, 6 September 2020 (UTC)
 * ✅ * Pppery * it has begun... 17:45, 6 September 2020 (UTC)

Template-protected edit request on 18 December 2021
There is a typo within the topic if statement. Current version:

Extract showing error, with emphasis added:
 * or one of subcategories

Corrected version:

Note, because the subject (the category, referred to as it) grammatically owns the subcategories, the form of its without the apostrophe is correct. Please correct this error, and thanks in advance. --Xurizuri (talk) 19:14, 18 December 2021 (UTC)
 * ✅.  P.I. Ellsworth &numsp;- ed.  put'r there 10:01, 19 December 2021 (UTC)