Fixed shortcode version not displaying inline

git-svn-id: https://plugins.svn.wordpress.org/responsive-mortgage-calculator/trunk@1003986 b8457f37-d9ea-0310-8a92-e5e31aec5664
Style tweak

git-svn-id: https://plugins.svn.wordpress.org/responsive-mortgage-calculator/trunk@1003988 b8457f37-d9ea-0310-8a92-e5e31aec5664
Readme tweak

git-svn-id: https://plugins.svn.wordpress.org/responsive-mortgage-calculator/trunk@1003989 b8457f37-d9ea-0310-8a92-e5e31aec5664