docs(docker): fix diff format.

[appleboy]

As title

Signed-off-by: Bo-Yi Wu appleboy.tw@gmail.com

[codecov-io]

Codecov Report

Merging #14035 (1748e09) into master (9e456b5) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #14035      +/-   ##
==========================================
- Coverage   42.20%   42.20%   -0.01%     
==========================================
  Files         710      710              
  Lines       77295    77295              
==========================================
- Hits        32626    32624       -2     
- Misses      39290    39293       +3     
+ Partials     5379     5378       -1     

Impacted Files	Coverage Δ
modules/util/timer.go	42.85% <0.00%> (-42.86%)	⬇️
models/repo_mirror.go	2.38% <0.00%> (-11.91%)	⬇️
modules/cron/tasks_basic.go	87.35% <0.00%> (-3.45%)	⬇️
services/mirror/mirror.go	15.78% <0.00%> (-1.11%)	⬇️
services/pull/check.go	48.90% <0.00%> (-0.73%)	⬇️
models/issue_comment.go	52.71% <0.00%> (+0.45%)	⬆️
routers/repo/view.go	38.11% <0.00%> (+0.64%)	⬆️
models/unit.go	49.31% <0.00%> (+2.73%)	⬆️
modules/queue/unique_queue_channel.go	64.51% <0.00%> (+6.45%)	⬆️
modules/indexer/stats/queue.go	64.70% <0.00%> (+11.76%)	⬆️

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[techknowlogick]

Ignore my previous comment. This LGTM