Based on my conversation with the user terbolous in #cloudstack: Changed the sequence of operations in the section "Initial setup of your fork" to move the two commands related to the upstream repository together.

README.rst

diff --git a/README.rst b/README.rst
index cbd6b54..619e9dd 100644
--- a/README.rst
+++ b/README.rst
@@ -50,8 +50,8 @@
    $ git clone https://github.com/YOUR_ACCOUNT/cloudstack-docs.git
    $ cd cloudstack-docs
    $ git remote add upstream https://github.com/apache/cloudstack-docs.git
-   $ git checkout master
    $ git fetch upstream
+   $ git checkout master
    $ git merge upstream/master