Doc: Updated for Version 1.0-RC3

This patch updates the documentation to reflect the latest
release (Version 1.0-RC3).

* Updated Sphynx documentation version tags
* Updated Doxygen documentation version tags
* Updated features/capabilities described in docs/readme.rst

Change-Id: I4c8ca9c3ad387d17ea66cc042e7acd91c2afe02f
Signed-off-by: Tamas Ban <tamas.ban@arm.com>
diff --git a/cmake/Common/BuildSphinxDoc.cmake b/cmake/Common/BuildSphinxDoc.cmake
index 3aea00f..0257539 100644
--- a/cmake/Common/BuildSphinxDoc.cmake
+++ b/cmake/Common/BuildSphinxDoc.cmake
@@ -84,8 +84,8 @@
 	#Version ID of TF-M.
 	#TODO: this shall not be hard-coded here. We need a process to define the
 	#      version number of the document (and TF-M).
-	set(SPHINXCFG_TFM_VERSION "v1.0-RC2")
-	set(SPHINXCFG_TFM_VERSION_FULL "Version 1.0-RC2")
+	set(SPHINXCFG_TFM_VERSION "v1.0-RC3")
+	set(SPHINXCFG_TFM_VERSION_FULL "Version 1.0-RC3")
 
 	get_filename_component(_NDX_FILE_DIR ${SPHINX_CONFIGURED_INDEX_FILE} DIRECTORY )