docs: no mdbook-alerts (#4026)

.github/workflows/gh-pages-mdbook.yml

@@ -23,8 +23,8 @@ jobs:
       - name: Install Dependencies
         shell: bash
         run: sudo apt-get install -y libwayland-dev libxkbcommon-dev # Required for winit
-      - name: Install mdbook-alerts, mdbook-mermaid
-        run: cargo install mdbook-alerts mdbook-mermaid
+      - name: Install mdbook-mermaid
+        run: cargo install mdbook-mermaid
       - name: Build
         working-directory: docs/mdbook
         shell: bash

docs/mdbook/README.md

@@ -2,10 +2,10 @@
 
 ## Build Locally
 
-Get the `mdbook` utility as well as [`mdbook-alerts`](https://github.com/lambdalisue/rs-mdbook-alerts) and [`mdbook-mermaid`](https://github.com/badboy/mdbook-mermaid), see https://rust-lang.github.io/mdBook/guide/installation.html
+Get the `mdbook` utility as well as [`mdbook-mermaid`](https://github.com/badboy/mdbook-mermaid), see https://rust-lang.github.io/mdBook/guide/installation.html
 
 ```
-cargo install mdbook mdbook-alerts mdbook-mermaid
+cargo install mdbook mdbook-mermaid
 ```
 
 Run

docs/mdbook/book.toml

@@ -1,7 +1,6 @@
 [book]
 authors = ["MapLibre Contributors"]
 language = "en"
-multilingual = false
 src = "src"
 title = "MapLibre Native Developer Documentation"
 
@@ -9,7 +8,5 @@ title = "MapLibre Native Developer Documentation"
 additional-css = ["diff.css"]
 additional-js = []
 
-[preprocessor.alerts]
-
 [preprocessor.mermaid]
 command = "mdbook-mermaid"