config.toml: update pagination

To fix deprecation:

    ERROR deprecated: site config key paginate was deprecated in Hugo v0.128.0 and subsequently removed. Use pagination.pagerSize instead.

config.toml

@@ -5,8 +5,6 @@ languageCode = "en-us"
 title = "Picturing Jordan"
 theme = "hugo-theme-bootstrap4-blog"
 enableRobotsTXT = true
-# number of posts to show on home/category/tag pages (Default: 10)
-paginate = 3
 copyright = "Except where otherwise noted, content on this site is licensed under a [Creative Commons Attribution 4.0 International license](https://creativecommons.org/licenses/by-sa/4.0/)."
 enableGitInfo = true
 
@@ -19,6 +17,10 @@ enableGitInfo = true
 # Default JPEG quality setting. Default is 75.
 #quality = 82
 
+[pagination]
+  # number of posts to show on home/category/tag pages (Default: 10)
+  pagerSize = 3
+
 [permalinks]
   posts = "/:year/:month/:slug/"
   page = "/:slug/"