diff --git a/Pipfile.lock b/Pipfile.lock
index 1613110..90501d1 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -234,11 +234,12 @@
         },
         "setuptools": {
             "hashes": [
-                "sha256:6c1fccdac05a97e598fb0ae3bbed5904ccb317337a51139dcd51453611bbb987",
-                "sha256:c636ac361bc47580504644275c9ad802c50415c7522212252c033bd15f301f32"
+                "sha256:54faa7f2e8d2d11bcd2c07bed282eef1046b5c080d1c32add737d7b5817b1ad4",
+                "sha256:f211a66637b8fa059bb28183da127d4e86396c991a942b028c6650d4319c3fd0"
             ],
+            "index": "pypi",
             "markers": "python_version >= '3.8'",
-            "version": "==69.5.1"
+            "version": "==70.0.0"
         },
         "six": {
             "hashes": [
diff --git a/docs/index.rst b/docs/index.rst
index e54c757..517c3e8 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -288,6 +288,16 @@ calling method `new_subdoc()` ::
    tpl = DocxTemplate('templates/merge_docx_master_tpl.docx')
    sd = tpl.new_subdoc('templates/merge_docx_subdoc.docx')
 
+   context = {
+       'mysubdoc': sd,
+   }
+
+   tpl.render(context)
+   tpl.save('output/merge_docx.docx')
+
+In the above example, the content of 'templates/merge_docx_subdoc.docx' will be inserted into the parent document in place of the declared
+variable `{{ mysubdoc }}`.
+
 See `tests/merge_docx.py` for full code.
 
 .. _Escaping: