fix: use official hugo-book theme repo

pseudoyu · pseudoyu · commit c7b5ad6cd08b · 2025-12-27T09:55:48.000+08:00
diff --git a/.gitmodules b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "themes/hugo-book"]
 	path = themes/hugo-book
-	url = https://github.com/pseudoyu/hugo-book
+	url = https://github.com/alex-shpak/hugo-book
diff --git a/themes/hugo-book b/themes/hugo-book
@@ -1 +1 @@
-Subproject commit 4ef38f3bbf5dae9a11a711d2ed1ced9294c6af5f
+Subproject commit b7f9c8cb0f51523f316777a27abba64b10e247f5
