readme.txt updates

git-svn-id: https://plugins.svn.wordpress.org/otw-portfolio-light/trunk@745064 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme.txt

git-svn-id: https://plugins.svn.wordpress.org/otw-portfolio-light/trunk@745066 b8457f37-d9ea-0310-8a92-e5e31aec5664