Update about.md (fuxingloh#112)

fix: allow refresh callback to be optional as the docs described (fux…

…ingloh#111)

* fix allow optional callback as stated

* updated cypress deps due to failing test

fix: on scroll called after component is unmounted (fuxingloh#101)

* fix: onscroll handler called after unmount
Co-authored-by: Fuxing Loh <[email protected]>

fix: onscroll handler called after unmount (fuxingloh#100)

docs: Added vue 3 install instruction (fuxingloh#88)

* docs: Added vue 3 install notes

* Added migration notes

chore: refactor all JS specs to TS (fuxingloh#92)

* chore: refactor all JS specs to TS

* deps: update cypress to v6.3.0

fix: v-hl-responsive last-child wrong parent class (fuxingloh#86)

fix: removed margin for last child in container (fuxingloh#81)

fix: prevent content from collapsing when empty (fuxingloh#74)

docs: tags.md with mouse wheel event (fuxingloh#72)