add coverage folder to npmignore since it isn't needed [ci skip]
add coverage folder to npmignore since it isn't needed [ci skip]

mout/mout,Oyamasiphula/mout,stevemao/mout,stevemao/mout,MathiasPaumgarten/mout,mout/mout,MathiasPaumgarten/mout,ChristianGrete/mout,Oyamasiphula/mout,millermedeiros/mout,ChristianGrete/mout,millermedeiros/mout