Smooth Scroll behavior

[sidnei-junior]

add in project new attribute css scroll-behavior and scroll-margin-top. the behavior of the anchors will be nicer

[sidnei-junior]

html {
scroll-behavior: smooth;
}
:target {
scroll-margin-top: 32px;
}

[felipefialho]

Hey @sidnei-junior, could you open a PR with this feature? 😁

Thanks