diff --git a/.github/workflows/sphinx.yml b/.github/workflows/sphinx.yml
index 6b4d9ed..6f1938e 100644
--- a/.github/workflows/sphinx.yml
+++ b/.github/workflows/sphinx.yml
@@ -1,7 +1,6 @@
 on:
   pull_request:
-  push:
-    branches: [main]
+  release:
 
 jobs:
   doc:
@@ -11,10 +10,8 @@ jobs:
     - uses: actions/setup-python@v2
       with:
         python-version: "3.9"
-    - run: |
-        python -m pip install -e .[doc]
-        cd doc
-        sphinx-build -b html -d _build/doctrees . _build/html
+    - run: python -m pip install -e .[doc]
+    - run: python doc/build.py
     - uses: peaceiris/actions-gh-pages@v3
       if: github.ref == 'refs/heads/main'
       with:
diff --git a/README.rst b/README.rst
index 665d1e1..c9be0e2 100644
--- a/README.rst
+++ b/README.rst
@@ -1,6 +1,8 @@
 Jacobi
 ======
 
+`Documentation <https://hdembinski.github.io/jacobi/>`_
+
 Fast numerical derivatives for real analytic functions with arbitrary round-off error.
 
 Features
diff --git a/doc/build.py b/doc/build.py
new file mode 100755
index 0000000..fd5e8d5
--- /dev/null
+++ b/doc/build.py
@@ -0,0 +1,8 @@
+#!/usr/bin/env python3
+import subprocess as subp
+from pathlib import Path
+import sys
+
+cmd = "sphinx-build -W -b html -d _build/doctrees . _build/html"
+
+sys.exit(subp.call(cmd.split(), cwd=Path(__file__).parent))
diff --git a/doc/conf.py b/doc/conf.py
index 32df565..6f799c6 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -12,8 +12,6 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-# import sys
-# import os
 from pathlib import Path
 
 with open("index.rst.in") as f:
@@ -21,6 +19,10 @@
 
 with open(Path("..") / "README.rst") as f:
     readme = f.read().replace("doc/", "")
+    # remove line 4
+    lines = readme.split("\n")
+    lines = lines[:3] + lines[4:]
+    readme = "\n".join(lines)
 
 with open("index.rst", "w") as f:
     f.write(stub + "\n" + readme)