examples/features
* Added new example in examples/features * Fix indentation, other suggested changes from review * fix: heading structure
to keep the look the same, added `fs-...` sizing classes where necessary
* Using the new helper in the doc * Remove input from `Tab` access * Change scrollspy code examples * Reordering tables for JS * Fix for parcel file * Center align all the code example texts in layout * Alphabetical reorder the helpers