docs(reg_recorded): add links to relevant docs
docs(Recording): update docs to match implementation
docs(Q) update references of Q to be gQ
docs(autocmd) add description about state of reg_record{ing,ed} for RecordingLeave
docs(vim_diff) add Recording{Enter,Leave} to features
docs(index) removed duplicate gQ
docs(options) removed line about gQ erroring in visual mode
Update runtime/doc/vim_diff.txt
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
docs(vim_diff) removed double mention of Q