Fix build warning.

`Build Warning: Layout 'nil' requested in atom.xml does not exist.`
Fix deprecation warning.

`Deprecation: Auto-regeneration can no longer be set from your configuration file(s)`
Add article about GPG-signed tags/commits

...in a GPG-signed commit
fix link and add byline
Merge pull request #51 from ryansb/en-ryansb

Article about GPG-signed tags