Add Code Climate badge to README
Add Code Climate badge to README

agisga/nmatrix,johnmarinelli/nmatrix,agisga/nmatrix,johnmarinelli/nmatrix,janusnic/nmatrix,wlevine/nmatrix,johnmarinelli/nmatrix,janusnic/nmatrix,wlevine/nmatrix,thisMagpie/nmatrix,agisga/nmatrix,thisMagpie/nmatrix,johnmarinelli/nmatrix,janusnic/nmatrix,wlevine/nmatrix,janusnic/nmatrix,agisga/nmatrix,thisMagpie/nmatrix,wlevine/nmatrix,thisMagpie/nmatrix