Release 0.2.8

What's Changed

• added playground at grafeo.ai to README.md by @StevenBtw in #5
• added language-aware dispatch by @StevenBtw & @XXXM1R0XXX in #7
• some additions borrowed from grafeo.ai (playground) by @StevenBtw in #8

Full Changelog: v0.2.7...v0.2.8