doc: git-diff: apply format changes to config part #130

Job	Run time
config	4s
fuzz smoke test	34s
win+VS build	0s
sparse	3m 18s
static-analysis	3m 17s
linux32 (daald/ubuntu32:xenial)	2m 59s
linux-musl (alpine)	3m 2s
pedantic (fedora)	1m 50s
win build	2m 57s
documentation	2m 27s
linux-asan-ubsan (ubuntu-latest)	2m 55s
win+VS test	0s
linux-gcc (ubuntu-20.04)	3m 2s
linux-gcc-default (ubuntu-latest)	3m 1s
linux-leaks (ubuntu-latest)	2m 56s
linux-reftable (ubuntu-latest)	3m 2s
linux-reftable-leaks (ubuntu-latest)	3m 0s
linux-sha256 (ubuntu-latest)	3m 1s
linux-TEST-vars (ubuntu-20.04)	3m 0s
osx-clang (macos-13)	2m 46s
osx-gcc (macos-13)	2m 52s
osx-reftable (macos-13)	2m 55s
win test	0s
	52m 58s

Provide feedback