update preferred versions text (#34)
diff --git a/source/overview/_requirements.rst b/source/overview/_requirements.rst
index 92b1def..1531462 100644
--- a/source/overview/_requirements.rst
+++ b/source/overview/_requirements.rst
@@ -29,7 +29,7 @@
- Operating system:
- - Preferred: CentOS/RHEL 6.3+ or Ubuntu 14.04(.2)
+ - Preferred: CentOS/RHEL 7.2+, CentOS/RHEL 6.8+ or Ubuntu 14.04(.2) or higher
- 64-bit x86 CPU (more cores results in better performance)
diff --git a/source/overview/index.rst b/source/overview/index.rst
index 1305f4a..c14d487 100644
--- a/source/overview/index.rst
+++ b/source/overview/index.rst
@@ -25,10 +25,10 @@
.. include:: _requirements.rst
-package repository
+Package Repository
------------------
-CloudStack is only distributed from source from the official mirrors.
+CloudStack is only distributed from source from the official Apache mirrors.
However, members of the CloudStack community may build convenience
binaries so that users can install Apache CloudStack without needing to
build from source.
