README.rst: convert to ReST and add details

* Convert the README file to reStructuredText (ReST)
* Add more details (such as build dependencies) for Fedora 27

Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>

Author: Geoffroy Van Cutsem

devicemodel/README

@@ -0,0 +1,76 @@
+ACRN Device Model
+#################
+
+Introduction
+============
+The ACRN Device Model provides **device sharing** capabilities between the Service OS and Guest OSs. It is a component that is used in conjunction with the `ACRN Hypervisor`_ and this is installed within the Service OS. You can find out more about Project ACRN on the `Project ACRN documentation`_ website.
+
+
+Building the Device Model
+=========================
+
+Build dependencies
+******************
+
+* For Clear Linux
+
+.. code-block:: console
+
+   sudo swupd bundle-add os-clr-on-clr \
+          os-utils-gui-dev
+
+* For CentOS
+
+.. code-block:: console
+
+   sudo yum install gcc \
+          libuuid-devel \
+          openssl-devel \
+          libpciaccess-devel
+
+* For Fedora 27
+
+.. code-block:: console
+
+   sudo dnf install gcc \
+          libuuid-devel \
+          openssl-devel \
+          libpciaccess-devel
+
+Build
+*****
+To build the Device Model
+
+.. code-block:: console
+
+   make
+
+To clean the build artefacts
+
+.. code-block:: console
+
+   make clean
+
+Runtime dependencies
+********************
+
+* On CentOS
+
+.. code-block:: console
+
+   sudo yum install openssl-libs \
+                    zlib \
+                    libpciaccess \
+                    libuuid
+
+* On Fedora 27
+
+.. code-block:: console
+
+   sudo dnf install openssl-libs \
+                    zlib \
+                    libpciaccess \
+                    libuuid
+
+.. _`ACRN Hypervisor`: https://github.com/projectacrn/acrn-hypervisor
+.. _`Project ACRN documentation`: https://projectacrn.github.io/