ci: Add fern docs publish workflow (#5758)

Signed-off-by: Jont828 <jt572@cornell.edu>
Co-authored-by: dagil-nvidia <dagil@nvidia.com>

.github/workflows/publish-fern-docs.yml

+# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Fern docs publish workflow
+# Publishes documentation to Fern when changes are pushed to the docs-website branch
+#
+# Required Configuration:
+# - Secret: FERN_TOKEN (generated via `fern token` command, specific to organization)
+#
+# To generate FERN_TOKEN:
+# 1. Install Fern CLI: npm install -g fern-api
+# 2. Run: fern token
+# 3. Add the token as a repository secret named FERN_TOKEN
+
+name: Publish Fern Docs
+
+on:
+  push:
+    branches:
+    - docs-website
+    paths:
+    - 'fern/**'
+    - '.github/workflows/publish-fern-docs.yml'
+  workflow_dispatch:
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    # Skip the first run after repo creation
+    if: ${{ github.event_name == 'workflow_dispatch' || github.run_number > 1 }}
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install Fern CLI
+        run: npm install -g fern-api
+
+      - name: Publish Docs
+        env:
+          FERN_TOKEN: ${{ secrets.FERN_TOKEN }}
+        working-directory: ./fern
+        run: fern generate --docs

fern/docs.yml

@@ -14,7 +14,7 @@
 # limitations under the License.
 
 instances:
-  - url: ai-dynamo.docs.buildwithfern.com
+  - url: dynamo.docs.buildwithfern.com
 
 title: NVIDIA Dynamo Documentation
 

fern/fern.config.json

 {
-  "organization": "ai-dynamo",
+  "organization": "nvidia",
   "version": "3.52.0"
 }