added links to samples on forked repositories - ViewPagerIndicator and PagerSlidingTabStrip
added links to samples on forked repositories - ViewPagerIndicator and PagerSlidingTabStrip

natuan241/LoopingViewPager,imbryk/LoopingViewPager,awesome-niu/LoopingViewPager,wasnot/LoopingViewPager,hanhailong/LoopingViewPager,TY-tianyu/LoopingViewPager