[Docs] Documentation meta issue

[silasdavis]

• Query language examples - how to use queries in vent, how to use them in execution event server and Stream. Some standard examples like:

Address = '29153E7BF5B8E0B5E0D5C9A3CCEA4CDE2D836C07' AND EventType = 'LogEvent'

should be included and tested

• https://godoc.org/github.com/hyperledger/burrow/ could do with top-level packages being documented