"week_1.md" did not exist on "ced0a6a7cb93978b00e365159691347a4d30f519"
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Use git tag command to add a new one:
git tag -a v1.4 -m 'version 1.4'
Use git tag command to add a new one:
git tag -a v1.4 -m 'version 1.4'