README: Document missing dependencies
We depend on other layers from meta-oe.
@@ -66,7 +66,7 @@ branch: master
revision: HEAD
URI: git://git.openembedded.org/meta-openembedded
-layers: meta-oe, meta-multimedia
+layers: meta-oe, meta-multimedia, meta-networking, meta-python
branch: master
revision: HEAD
