some updates to the descriptions

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-google-adwords-conversion-tracking-tag/trunk@753077 b8457f37-d9ea-0310-8a92-e5e31aec5664
some updates to the descriptions

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-google-adwords-conversion-tracking-tag/trunk@753078 b8457f37-d9ea-0310-8a92-e5e31aec5664
some updates to the descriptions

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-google-adwords-conversion-tracking-tag/trunk@753081 b8457f37-d9ea-0310-8a92-e5e31aec5664