book: update en

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

external/book/content/book/en/v2/Git-Tools-Submodules.html

@@ -211,7 +211,7 @@ <h3 id="_cloning_submodules">Cloning a Project with Submodules</h3>
 </div>
 <div class="paragraph">
 <p>The <code>DbConnector</code> directory is there, but empty.
-You must run two commands: <code>git submodule init</code> to initialize your local configuration file, and <code>git submodule update</code> to fetch all the data from that project and check out the appropriate commit listed in your superproject:</p>
+You must run two commands from the main project: <code>git submodule init</code> to initialize your local configuration file, and <code>git submodule update</code> to fetch all the data from that project and check out the appropriate commit listed in your superproject:</p>
 </div>
 <div class="listingblock">
 <div class="content">

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

@@ -8,10 +8,10 @@
   language_code: en
   front_page: true
   repository_url: https://github.com/progit/progit2
-  sha: f096b30fc641498b0fac16f50bbf3a5f98b5f502
-  ebook_pdf: https://github.com/progit/progit2/releases/download/2.1.441/progit.pdf
-  ebook_epub: https://github.com/progit/progit2/releases/download/2.1.441/progit.epub
-  ebook_mobi: https://github.com/progit/progit2/releases/download/2.1.441/progit.mobi
+  sha: 515e4e11c94d1bf30d21511a85743c159d120dc7
+  ebook_pdf: https://github.com/progit/progit2/releases/download/2.1.442/progit.pdf
+  ebook_epub: https://github.com/progit/progit2/releases/download/2.1.442/progit.epub
+  ebook_mobi: https://github.com/progit/progit2/releases/download/2.1.442/progit.mobi
 page_title: Git - Book
 url: "/book/en/v2.html"
 aliases:

external/book/sync/book-en.sha

@@ -1 +1 @@
-f096b30fc641498b0fac16f50bbf3a5f98b5f502
+515e4e11c94d1bf30d21511a85743c159d120dc7