fix typo, add link to http://workspaces.openshift.com/ (#1977)

Change-Id: I6bbcf1d0e1609fbdbcd25f6b4a2b33fdebd745c3
Signed-off-by: nickboldt <nboldt@redhat.com>

Author: nickboldt

README.md

@@ -21,7 +21,7 @@ OpenShift Connector extension provides an end-to-end developer experience for Re
 
 #### Developer Sandbox
 
-The extension allows the users to Get free access to the Developer Sandbox for Red Hat OpenShift. From `Add Cluster View`, users will be redirected to the dev sandbox instance. The sandbox provides you with a private OpenShift environment in a shared, multi-tenant OpenShift cluster that is pre-configured with a set of developer tools.
+The extension allows users free access to the [Developer Sandbox for Red Hat OpenShift](http://workspaces.openshift.com/). From `Add Cluster View`, users will be redirected to the dev sandbox instance. The sandbox provides you with a private OpenShift environment in a shared, multi-tenant OpenShift cluster that is pre-configured with a set of developer tools.
 
 #### Local instance of OpenShift