Add some README info about the docs repo

diff --git a/README.md b/README.md
index e5591d5e0ae17c7272235a605cd844f39c6da4ba..30bfa8b1068616f10ecb3c85c77c9c572c3ca711 100644 (file)
--- a/README.md
+++ b/README.md
@@ -64,6 +64,20 @@ Once the `get` completes, you should find your new `hugo` (or `hugo.exe`) execut
 To update Hugo’s dependencies, use `go get` with the `-u` option.
 
     go get -u -v github.com/gohugoio/hugo
+       
+## The Hugo Documentation
+
+The Hugo documentation now lives in its own repository, see https://github.com/gohugoio/hugoDocs. But we do keep a version of that documentation as a `git subtree` in this repository. To build the sub folder `/docs` as a Hugo site, you need to clone this repo with submodules:
+
+```bash
+git clone --recursive git@github.com:gohugoio/hugo.git
+```
+
+Or after you have cloned it you can do:
+
+```bash
+git submodule update --init
+```
 
 ## Contributing to Hugo