Added stub release notes for 4.0.3.

docs/releases/4.0.3.txt

@@ -0,0 +1,12 @@
+==========================
+Django 4.0.3 release notes
+==========================
+
+*Expected March 1, 2022*
+
+Django 4.0.3 fixes several bugs in 4.0.2.
+
+Bugfixes
+========
+
+* ...

docs/releases/index.txt

@@ -32,6 +32,7 @@ versions of the documentation contain the release notes for any later releases.
 .. toctree::
    :maxdepth: 1
 
+   4.0.3
    4.0.2
    4.0.1
    4.0