Release 0.18.0

• update deps, add comments (bf96d1f)
• update QuickLRU option (2) (#21) (955130d)
• upgrade dependencies (cf87423)
• Allow dependent to upgrade to Apollo@3 and GraphQL@16 (#23) (2253637)
• specify ttl in seconds (f03357c)
• merge request headers (#18) (d234a10)
• fix type issues (2823640)
• Update http-data-source.ts (#12) (7a11d39)
• update readme (9f5652f)

Warning: According to semver this package is still in development and any release < 1.0 can break.