v0.0.20

What's Changed

• (Breaking) Make Lua.Table.as_string more powerful by @davydog187 in #48
• Cleanup the docs so that examples are copy-pastable by @davydog187 in #49
• Add imports by @davydog187 in #50
• Pull in Luerl 1.2.3, allow for passing through of tref values by @davydog187 in #52
• Auto wrap functions passed to Lua.set! to receive %Lua{} by @davydog187 in #53

Full Changelog: v0.0.19...v0.0.20