Check and update examples

[JamieDanielson]

Review examples in examples directory and update packages as needed.

Add a comment for which example you are working on so others don't.

• [ ] bunyan
• [ ] connect
• [ ] dns
• [ ] express
• [ ] fastify
• [ ] graphql
• [ ] grpc-census-prop
• [ ] hapi
• [ ] host-metrics
• [ ] ioredis
• [ ] koa
• [ ] memcached
• [ ] meta-node
• [ ] mongodb
• [ ] mysql
• [ ] network
• [ ] react-load
• [ ] redis
• [ ] restify
• [ ] router
• [ ] web

[sp6370]

Hey 👋🏽 ! I am working on the express example.

[xonev]

Hi there, I'll work on the web example.

[dsvanlani]

I took mongodb actually