Add specific config examples across docs (#736)

## Description of the changes
First pass on adding example configs versus CLI across sampling and
backends.

## How was this change tested?
make spellcheck
make develop

## Checklist
- [X] I have read
https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
- [X] I have signed all commits

---------

Signed-off-by: Jonah Kowall <jkowall@kowall.net>

content/docs/next-release-v2/badger.md

@@ -3,8 +3,8 @@ title: Badger
 hasparent: true
 ---
 
-[Badger](https://github.com/dgraph-io/badger) is an embedded local storage, only available
-with **all-in-one** distribution. By default, it acts as ephemeral storage using a temporary file system.
+[Badger](https://github.com/dgraph-io/badger) is an embedded local storage, available
+with `jaeger`. By default, it acts as span storage using a file system.
 
 For [additional configuration](https://github.com/jaegertracing/jaeger/blob/main/cmd/jaeger/config-badger.yaml)