Update README.md

zware · web-flow · commit 4b29e0458fa8 · 2017-05-22T12:17:48.000-07:00
diff --git a/README.md b/README.md
@@ -1,2 +1,6 @@
 # cpython-source-deps
 Source for packages that the cpython build process depends on
+
+It is currently expected that this will only be useful on Windows,
+and in any case you should never need to clone this repository
+unless you are updating its contents.
