python-brick-cinderclient-ext installation guide typo
python-brick-cinderclient-ext installation guide typo

The installation guide says the package name is
brick-python-cinderclient-ext.

However, right package name is python-brick-cinderclient-ext.

We need to fix the installation guide.

Change-Id: I5b182ba6c8219139b19d8e374b9ed939799d4d98
Closes-Bug: #1706005

openstack/python-brick-cinderclient-ext,openstack/python-brick-cinderclient-ext