docs: use cross links

github-pages/docs/book.typ

@@ -51,3 +51,4 @@
 // re-export page template
 #import "/contrib/typst/gh-pages.typ": project
 #let book-page = project
+#let cross-link = cross-link

github-pages/docs/cli/init.typ

@@ -1,10 +1,10 @@
-#import "/github-pages/docs/book.typ": book-page
+#import "/github-pages/docs/book.typ": book-page, cross-link
 
 #show: book-page.with(title: "CLI Init Command")
 
 = The init command
 
-The `init` command will try to initialize your book to build your book successfully by default. It is hence including all of the #link("https://myriad-dreamin.github.io/typst-book/cli/build.html")[options] from `build` command.
+The `init` command will try to initialize your book to build your book successfully by default. It is hence including all of the #cross-link("/cli/build.typ")[options] from `build` command.
 
 For instance, Initialize a book to the directory `my-book`:
 
@@ -29,7 +29,7 @@ typst-book build my-book/ # memoryized dest-dir
 
 == Things to note
 
-The harder way, by creating the book without `init` command, your `book.typ` should at least provides a `book-meta`, as #link("https://myriad-dreamin.github.io/typst-book/guide/get-started.html")[Get Started] shown.
+The harder way, by creating the book without `init` command, your `book.typ` should at least provides a `book-meta`, as #cross-link("/guide/get-started.typ")[Get Started] shown.
 
 ```typ
 #import "@preview/book:0.2.2": *

github-pages/docs/cli/main.typ

@@ -1,22 +1,22 @@
-#import "/github-pages/docs/book.typ": book-page
+#import "/github-pages/docs/book.typ": book-page, cross-link
 
 #show: book-page.with(title: "Command Line Tool")
 
 = Command Line Tool
 
 // todo: cross link
 The `typst-book` command-line tool is used to create and build books.
-After you have #link("https://myriad-dreamin.github.io/typst-book/guide/installation.html")[installed] `typst-book`, you can run the `typst-book help` command in your terminal to view the available commands.
+After you have #cross-link("/guide/installation.typ")[installed] `typst-book`, you can run the `typst-book help` command in your terminal to view the available commands.
 
 This following sections provide in-depth information on the different commands available.
 
 // todo: cross link
-- #link("https://myriad-dreamin.github.io/typst-book/cli/init.html")[`typst-book init <directory>`] — Creates a new book with minimal boilerplate to start with.
-- #link("https://myriad-dreamin.github.io/typst-book/cli/build.html")[`typst-book build`] — Renders the book.
-- #link("https://myriad-dreamin.github.io/typst-book/cli/serve.html")[`typst-book serve`] — Runs a web server to view the book, and rebuilds on changes.
-- #link("https://myriad-dreamin.github.io/typst-book/cli/clean.html")[`typst-book clean`] — Deletes the rendered output.
-- #link("https://myriad-dreamin.github.io/typst-book/cli/completions.html")[`typst-book completions`] — Support for shell auto-completion.
+- #cross-link("/cli/init.typ")[`typst-book init <directory>`] — Creates a new book with minimal boilerplate to start with.
+- #cross-link("/cli/build.typ")[`typst-book build`] — Renders the book.
+- #cross-link("/cli/serve.typ")[`typst-book serve`] — Runs a web server to view the book, and rebuilds on changes.
+- #cross-link("/cli/clean.typ")[`typst-book clean`] — Deletes the rendered output.
+- #cross-link("/cli/completions.typ")[`typst-book completions`] — Support for shell auto-completion.
 
 = Note about the missing `watch` command
 
-We suggest you to use #link("https://github.com/Enter-tainer/typst-preview")[Typst Preview plugin] for preview feature. For more details, please see #link("https://myriad-dreamin.github.io/typst-book/guide/get-started.html")[Get Started] chapter.
+We suggest you to use #link("https://github.com/Enter-tainer/typst-preview")[Typst Preview plugin] for preview feature. For more details, please see #cross-link("/guide/get-started.typ")[Get Started] chapter.

github-pages/docs/cli/serve.typ

@@ -1,4 +1,4 @@
-#import "/github-pages/docs/book.typ": book-page
+#import "/github-pages/docs/book.typ": book-page, cross-link
 
 #show: book-page.with(title: "CLI Serve Command")
 
@@ -30,7 +30,7 @@ typst-book serve path/to/book
 
 == Build options
 
-The `serve` command will build your book once before serving the content. It is hence including all of the #link("https://myriad-dreamin.github.io/typst-book/cli/build.html")[options] from `build` command.
+The `serve` command will build your book once before serving the content. It is hence including all of the #cross-link("/cli/build.typ")[options] from `build` command.
 
 == Server options
 

github-pages/docs/format/book.typ

@@ -1,4 +1,4 @@
-#import "/github-pages/docs/book.typ": book-page
+#import "/github-pages/docs/book.typ": book-page, cross-link
 
 #show: book-page.with(title: "book.typ")
 
@@ -41,7 +41,7 @@ In this example, you specify following fields for the book project:
 - authors #type-hint("array<string>") (optional): Specify the author(s) of the book.
 - summary #type-hint("content") (required): Summarize of the book.
 
-See #link("https://myriad-dreamin.github.io/typst-book/format/book-meta.html")[Book Metadata] for more details.
+See #cross-link("/format/book-meta.typ")[Book Metadata] for more details.
 
 == build-meta
 
@@ -55,4 +55,4 @@ Specify build metadata of the book project. For example:
 
 When you set `build-meta.dest-dir` to `../dist`, `typst-book` will output the generated content to `parent/to/book.typ/../../dist` or `parent/dist`.
 
-See #link("https://myriad-dreamin.github.io/typst-book/format/build-meta.html")[Build Metadata] for more details.
+See #cross-link("/format/build-meta.typ")[Build Metadata] for more details.

github-pages/docs/format/theme.typ

@@ -1,4 +1,4 @@
-#import "/github-pages/docs/book.typ": book-page
+#import "/github-pages/docs/book.typ": book-page, cross-link, cross-link-path-label
 
 #show: book-page.with(title: "Theme")
 
@@ -12,7 +12,9 @@ Currently we have no much design on theme's html part. But you can still configu
 
 == Things to note
 
-Your `book.typ` should at least provides a `book-meta`, as #link("https://myriad-dreamin.github.io/typst-book/guide/get-started.html")[Get Started] shown.
+#let t = cross-link("/guide/get-started.typ")[Get Started]
+
+Your `book.typ` should at least provides a `book-meta`, as #t shown.
 
 ```typ
 #import "@preview/book:0.2.2": *