add an new feature "ignore URL patterns".

[yzwdroid]

Hi Matthew, as described in lab 4 can I add an "ignore URL patterns" feature into your repo.

• about the ignored file.
  the file is a simple text file where each line is either a URL (line starts with http:// or https://) or an optional comment (line starts with #, and can be ignored).

[MSTEWARDSON]

Yes sounds good, go ahead. I assigned you to this issue.

[yzwdroid]

I have pushed my work to issue-16 branch. Could you please check it? Any problem, let me known.

For testing, run go run main.go test.txt -i, the default ignore file is ignore.txt

[MSTEWARDSON]

Alright thanks.

[MSTEWARDSON]

So I have a few suggestions for fully implementing this feature.

1. Add a ignore help message to the helpful information output.
2. Update the ReadMe to show how to use this new feature.

Other then that the code looks good. I like the default ignore file option you added. Good job!

[yzwdroid]

I have added a new commit, please check it out.

[MSTEWARDSON]

Perfect, thanks! I have now merged your work.