Add prettier

Author: Veetaha

.github/workflows/ci.yml

@@ -52,11 +52,16 @@ jobs:
 
     strategy:
       matrix:
-        project:
+        terraform_module:
           - asset-account/terraform/stack-set
 
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: "npm"
+      - run: npm ci --ignore-scripts
 
       - run: |
           curl https://github.com/terraform-docs/terraform-docs/releases/download/v0.19.0/terraform-docs-v0.19.0-linux-amd64.tar.gz \
@@ -66,13 +71,15 @@ jobs:
             --retry-all-errors \
             --show-error \
             | tar -xz > ./terraform-docs
-        working-directory: ${{ matrix.project }}
+        working-directory: ${{ matrix.terraform_module }}
 
       - run: chmod +x ./terraform-docs
-        working-directory: ${{ matrix.project }}
+        working-directory: ${{ matrix.terraform_module }}
 
-      - run: ./terraform-docs markdown . > README.md
-        working-directory: ${{ matrix.project }}
+      - run: ./terraform-docs markdown . --output-file README.md
+        working-directory: ${{ matrix.terraform_module }}
+
+      - run: npx prettier -w .
 
       - run: >-
           git diff --exit-code --color=always || ( echo "Terraform docs are