docs: add or update sotries of alert, avatar and button

[jack0pan]

affects: @gio-design/components

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[codecov]

Codecov Report

Merging #467 (74c80fb) into master (8b21f93) will decrease coverage by 0.01%.
The diff coverage is 59.57%.

@@            Coverage Diff             @@
##           master     #467      +/-   ##
==========================================
- Coverage   77.34%   77.32%   -0.02%     
==========================================
  Files         111      113       +2     
  Lines        3632     3651      +19     
  Branches      869      872       +3     
==========================================
+ Hits         2809     2823      +14     
- Misses        818      823       +5     
  Partials        5        5              

Impacted Files	Coverage Δ
...nts/src/components/date-picker/dateRangePicker.tsx	16.90% <0.00%> (ø)
...mponents/src/components/list/Sortable/template.tsx	34.37% <0.00%> (-1.11%)	⬇️
...ents/src/components/list/Sortable/SortableItem.tsx	23.52% <20.00%> (-0.97%)	⬇️
...mponents/src/components/date-picker/datePicker.tsx	64.81% <45.45%> (ø)
...s/src/components/list/utils/withGroupedOptions.tsx	96.66% <80.00%> (+0.11%)	⬆️
packages/components/src/components/list/list.tsx	91.35% <93.75%> (ø)
packages/components/src/components/alert/alert.tsx	94.44% <100.00%> (-5.56%)	⬇️
...ckages/components/src/components/avatar/Avatar.tsx	100.00% <100.00%> (ø)
...s/components/src/components/avatar/AvatarGroup.tsx	100.00% <100.00%> (ø)
...ckages/components/src/components/button/button.tsx	100.00% <100.00%> (ø)
... and 8 more

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