init: project
chore: update package name
feat(readme): add gif to demonstrate the effect
chore: update gradle package name
feat: update icon
update: demo gif
feat(guide): guide pages layout
dependency: ViewPagerIndicator and Custom Gradle Support
submodule: viewpager indicator
vcs: turn denpendency project "ViewPagerIndicator" as a submodule
feat(guide): basic guide page with ViewPager
feat: abstract a common fragment for those guides
feat(Parallax): basic parallax effect
optimize: coefficients of the parallax animation
vcs: rm some NONE VCS files and directories
vcs: add ignored file types
denpendency: increase the support package version
feat: mark each layout's root view with an unique id
feat(#1): apply parallax animation on specific layout
feat(tips): add tips switcher