Added code annotation location is static. #48

Thanks for the extension. I use the extension very often to keep track of things or clarifications I need within the code. I like that the annotations are not comments added within the file, but tracked outside.

I added some annotations to certain sections of the code. Later, if I edit the sections above the annotation(say add new lines of code or remove some existing lines), the location link for the previously added annotation becomes different. Now, this annotation is linked to a section of the code different from the one I initially annotated.

Can we adjust the linking to update its location when there are changes to the file with annotations?