Log Message:
security/gpg-tui: update to 0.3.0

[0.3.0] - 2021-06-05

Added:
-Add packaging status badge to README.md
-Add Matrix room link to social media section in README.md

Changed:
-Display notations of the signatures (#8)
-Update README.md about Docker alias
-Update README.md about the format of notations
-Update the example notation in README.md
-Update the style of flags

Fixed:
-Run container process as unprivileged user