gitnu 0.2.0

gitnu indexes your git status so you can use numbers instead of filenames.
Documentation
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On branch main
Changes to be committed:
1	new file:   A
2	modified:   B
3	deleted:    C
4	renamed:    _D -> D
5	typechange: E

Changes not staged for commit:
6	modified:   G
7	typechange: H
8	deleted:    _I

Untracked files:
9	F
10	I