IDs of the note list start from 1. Link generated for each note started
with index 0 i.e #Note0, #Note1 and so on.
As a result, first link ("#Note0") was invalid, subsequent links pointed
at wrong note.
Now, generated links to the notes start with index 1 i.e (#Note1, #Note2
and so on.
Patch by Guruprasad Hegde (gruuprasad)!
Fixes https://github.com/llvm/llvm-project/issues/64054
Differential Revision: https://reviews.llvm.org/D156724
