add CI (#5)

* add build.yml

* update mdbook.yml

Author: rvhonorato

.github/workflows/build.yml

@@ -0,0 +1,20 @@
+name: build
+
+on:
+  pull_request:
+  workflow_dispatch: ~
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      MDBOOK_VERSION: 0.4.47
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - run: rustup update stable && rustup default stable
+
+      - run: cargo install --version ${MDBOOK_VERSION} mdbook
+
+      - run: mdbook build

.github/workflows/mdbook.yml

@@ -2,7 +2,7 @@ name: deploy book
 
 on:
   push:
-    branches: main
+    branches: [main]
   workflow_dispatch: ~
 
 permissions:
@@ -21,18 +21,16 @@ jobs:
       MDBOOK_VERSION: 0.4.47
     steps:
       - uses: actions/checkout@v4
-      - name: Install mdBook
-        run: |
-          curl --proto '=https' --tlsv1.2 https://sh.rustup.rs -sSf -y | sh
-          rustup update
-          cargo install --version ${MDBOOK_VERSION} mdbook
+
+      - run: rustup update stable && rustup default stable
+
+      - run: cargo install --version ${MDBOOK_VERSION} mdbook
 
       - name: Setup Pages
         id: pages
         uses: actions/configure-pages@v4
 
-      - name: Build with mdBook
-        run: mdbook build
+      - run: mdbook build
 
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3