add CI build tags to README
add CI build tags to README
jlblancoc/suitesparse-metis-for-windows,jlblancoc/suitesparse-metis-for-windows,jlblancoc/suitesparse-metis-for-windows,jlblancoc/suitesparse-metis-for-windows,jlblancoc/suitesparse-metis-for-windows,jlblancoc/suitesparse-metis-for-windows,jlblancoc/suitesparse-metis-for-windows,jlblancoc/suitesparse-metis-for-windows,jlblancoc/suitesparse-metis-for-windows