Add tag-check to workflow

[alisnwu]

closes #103

[alisnwu]

@sbillinge Ready for review

[sbillinge]

I mentioned this on another closed branch, but numerals are not limited to the range 0-9 so we may want to replace [0,9] everywhere with something like \d.

[alisnwu]

The + behind each 0-9 allows for multiple digits, so 10.10.133 would also be accepted by the .yml

[sbillinge]

The + behind each 0-9 allows for multiple digits, so 10.10.133 would also be accepted by the .yml

ah, thanks.