Fixing typos at README.rst

README.rst

@@ -2,10 +2,10 @@ Version data and metadata for host-os projects
 ***************************************************
 This repository contains metadata to build the projects at the open-power-host-os
 namespace.
-It also contain auxiliar data necessary to create the software packages.
+It also contains additional data necessary to create the software packages.
 
 As new features are introduced in the projects at open-power-host-os new tags will
-be added here to estabilish a valid and tested set of software versions to build.
+be added here to establish a valid and tested set of software versions to build.
 
 Supported GNU/Linux distributions
 ---------------------------------
@@ -15,5 +15,5 @@ Supported GNU/Linux distributions
 Installation
 ------------
 The Builds project, at https://github.com/open-power-host-os/builds uses this
-repository automatically by cloning it and checking out in the tag refered in
-its config.yaml.
+repository automatically by cloning it and doing a git checkout in the tag
+refered in its config.yaml.