v0.3.1

What's Changed

• Use official Go badge in README by @ryanfowler in #6
• Protect against stack overflow from recursive structs in Zeroize by @ryanfowler in #7
• Optimize the Zeroize function by @ryanfowler in #8
• Ensure slice elements are deep zeroed by @ryanfowler in #9

Full Changelog: v0.3.0...v0.3.1