updated README for vault

README.md

@@ -5,7 +5,8 @@
 `confd` is a lightweight configuration management tool focused on:
 
 * keeping local configuration files up-to-date using data stored in [etcd](https://github.com/coreos/etcd),
-  [consul](http://consul.io), [dynamodb](http://aws.amazon.com/dynamodb/), [redis](http://redis.io), [zookeeper](https://zookeeper.apache.org) or env vars and processing [template resources](docs/template-resources.md).
+  [consul](http://consul.io), [dynamodb](http://aws.amazon.com/dynamodb/), [redis](http://redis.io),
+  [vault](https://vaultproject.io), [zookeeper](https://zookeeper.apache.org) or env vars and processing [template resources](docs/template-resources.md).
 * reloading applications to pick up new config file changes
 
 ## Community

docs/quick-start-guide.md

@@ -8,6 +8,7 @@ confd supports the following backends:
 
 * etcd
 * consul
+* vault
 * environment variables
 * redis
 * zookeeper
@@ -33,6 +34,12 @@ curl -X PUT -d 'db.example.com' http://localhost:8500/v1/kv/myapp/database/url
 curl -X PUT -d 'rob' http://localhost:8500/v1/kv/myapp/database/user
 ```
 
+####vault
+```
+vault mount -path myapp generic
+vault write myapp/database url=db.example.com user=rob
+```
+
 #### environment variables
 
 ```
@@ -135,6 +142,14 @@ confd -onetime -backend etcd -node http://127.0.0.1:4001
 confd -onetime -backend consul -node 127.0.0.1:8500
 ```
 
+#### vault
+```
+ROOT_TOKEN=$(vault read -field id auth/token/lookup-self)
+
+confd -onetime -backend vault -node http://127.0.0.1:8200 \
+      -auth-type token -auth-token $ROOT_TOKEN
+```
+
 #### dynamodb
 
 ```