Readme: update coding standard link

Maybe it's on purpose, but current link leads to documentation, where deprecated note.
Fixed the resetting of the json file on removal failures

Closes #3329
Updated example to have a valid tag name.
Merge pull request #3330 from stof/patch-1

Fixed the resetting of the json file on removal failures
Merge pull request #3328 from TomasVotruba/patch-1

Readme: update coding standard link
Output CWD change, refs #3332
Avoid passing args to CLI handlers when none are needed, fixes #3332