Drop empty documentation sections
... and fix the invalid installation guide to avoid confusions.
Tempest plugins are developed for testing so detailed documentation is
not usually needed.
Change-Id: I9632a02b96e02b69e6592f731c214d771218fcdf
diff --git a/doc/source/installation.rst b/doc/source/installation.rst
new file mode 100644
index 0000000..4c674a9
--- /dev/null
+++ b/doc/source/installation.rst
@@ -0,0 +1,12 @@
+============
+Installation
+============
+
+At the command line::
+
+ $ pip install manila-tempest-plugin
+
+Or, if you have virtualenvwrapper installed::
+
+ $ mkvirtualenv manila-tempest-plugin
+ $ pip install manila-tempest-plugin