Move openrc file

When the openrc file is managed by Git, your local changes end up
conflicting with the remote version. This change renames the openrc file
to openrc.default and updates the README.md file to take this into
account.

Change-Id: I4e5def6b38c3690a0c5d2ca64fa84045dc255fae

.gitignore

@@ -1,3 +1,4 @@
+openrc
 *.py[cod]
 __cache__
 .cache

README.md

@@ -15,7 +15,8 @@ It is based on two other projects:
 for the detailed procedure).
 2. Prepare the environment:
 
-        vi openrc
+        cp openrc.default openrc
+        # Edit the openrc file as needed
         . openrc
         ./utils/fuel-qa-builder/prepare_env.sh
 
@@ -66,4 +67,3 @@ The *OpenStack Development Mailing List* is the preferred way to communicate
 with the members of the project.
 Emails should be sent to `openstack-dev@lists.openstack.org` with the subject
 prefixed by `[fuel][plugins][lma]`.
-