Explain in docs that write doesn't create new file =)

[godlikeSwan]

Spent some time to find that
Also #70 helps

[Zazama]

Oh yeah, that's an interesting point!
Actually, what is the behaviour you expected? Did you want to write only the tags into a file?

[godlikeSwan]

I thought it will write like fs.write
like copy the whole file and add that specified tags
may be I'm just stupid 😃

[Zazama]

Okay, no I also think it's not explained good enough in the readme, so thanks for creating the issue 🙂

I've added some explainations, I hope they clarify it better for new users: 3bf7d72

[godlikeSwan]

much better now! 😄