diff --git a/content/sphinx.md b/content/sphinx.md
index f6d0b62..e4b0e3c 100644
--- a/content/sphinx.md
+++ b/content/sphinx.md
@@ -357,25 +357,30 @@ def multiply(a: float, b: float) -> float:
     return a * b
 ```
 
-2. In the file `conf.py` modify "extensions" and add 3 lines:
-```python
-extensions = ['myst_parser', "sphinx.ext.autodoc"]
+2. Add a file `api.md` in the same folder as `index.rst`, with the following content:
+````md
+# API reference
+
+## example
 
-autodoc2_packages = [
-    "multiply.py"
-]
+```{eval-rst}
+.. automodule:: example
+   :members:
 ```
+````
 
-4. List `apidocs/index` in the toctree in `index.rst`.
-```rst
-.. toctree::
-   :maxdepth: 2
-   :caption: Contents:
+3. In the file `conf.py` add 3 lines and modify "extensions":
+```python
+# this is a trick to make sphinx find the modules in the parent directory
+import os
+import sys
+sys.path.insert(0, os.path.abspath("."))
 
-   some-feature.md
-   apidocs/index
+extensions = ['myst_parser', "sphinx.ext.autodoc"]
 ```
 
+4. List the `api.md` file in `index.rst`.
+
 5. Re-build the documentation and check the "API reference" section.
 `````