@dasym, you can only link to headers or to anchor explicitly set with an A tag.
For example, if you create a header like this:
# My anchor
It will create an anchor named “my-anchor”, which you can then link from a note like this: [Target note](:/6d55a1e4d87946099bb8aeb24f663f96#my-anchor)
Another way to create an anchor is like this:
<a id="another-anchor"></a>
Which again you can link like this: [Target note](:/6d55a1e4d87946099bb8aeb24f663f96#another-anchor)
I’m planning to add some info about this in the doc, but in the meantime this is how it works.