v0.6.1

What's Changed

• chore: fix doc by @andylokandy in #163
• improve: use ringbuffer to send spans by @andylokandy in #167
• feat: allow to use String as span name by @andylokandy in #168
• update opentelemetry by @andylokandy in #169
• feat: add #[trace(path_name = true)] by @andylokandy in #170
• macro use full name as default by @andylokandy in #171
• feat: add Span::elapsed() by @andylokandy in #172

Full Changelog: v0.5.1...v0.6.1