* revert: Convert {docsify-ignore} and {docsify-ignore-all} to HTML comments
This reverts commit 90d283d340
* fix: patch for docsify-ignore
* fix test
* fix test
* Adds option to specify an header height
When using a template that has a sticky-header, clicking on the sidebar will
scroll the page under the header.
I added the option `headerHeight` (default = `0`) so that the content div will
be scrolled down that amount of pixels.
* updates documentation and renames variable