Merge pull request #102 from ipfs/readme/badger2

readme: add information on Badger2 datastore

README.md

@@ -16,6 +16,7 @@
 ## Table of Contents
 
 - [Documentation](#documentation)
+- [Badger2](#badger2)
 - [Contribute](#contribute)
 - [License](#license)
 
@@ -23,6 +24,10 @@
 
 https://godoc.org/github.com/ipfs/go-ds-badger
 
+## Badger2
+
+This repo contains a datastore implementation using Badger v1. If you are looking for a Badger v2 datastore check out https://github.com/ipfs/go-ds-badger2.
+
 ## Contribute
 
 Feel free to join in. All welcome. Open an [issue](https://github.com/ipfs/go-ds-badger/issues)!