Added Screenshot

git-svn-id: https://plugins.svn.wordpress.org/show-stock-quotes/trunk@917700 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fixed Bug with Multiple Portfolios

git-svn-id: https://plugins.svn.wordpress.org/show-stock-quotes/trunk@917703 b8457f37-d9ea-0310-8a92-e5e31aec5664