book: update nl

Updated via the `update-book.yml` GitHub workflow.

Author: dscho

external/book/content/book/nl/v2/_index.html

@@ -8,7 +8,7 @@
   language_code: nl
   front_page: true
   repository_url: https://github.com/progit/progit2-nl
-  sha: 4a05a9ca48e1c5570c78b4d2c60c2e9561cbcaa8
+  sha: 2db473d561125b5cdf080bdb31c52c6d771a1e83
   ebook_pdf: https://github.com/progit/progit2-nl/releases/download/2.1.117/progit.pdf
   ebook_epub: https://github.com/progit/progit2-nl/releases/download/2.1.117/progit.epub
 page_title: Git - Book

external/book/sync/book-nl.sha

@@ -1 +1 @@
-4a05a9ca48e1c5570c78b4d2c60c2e9561cbcaa8
+2db473d561125b5cdf080bdb31c52c6d771a1e83