README.md in redis_cluster-0.2.7 vs README.md in redis_cluster-0.2.8

@@ -26,18 +26,30 @@
 ## Usage
 
 First you need to configure redis cluster with some nodes! Please see: [https://redis.io/topics/cluster-tutorial](https://redis.io/topics/cluster-tutorial)
 
 ```ruby
-hosts = [{host: '127.0.0.1', port: 7000}, {host: '127.0.0.1', port: 7001}]  # don't need all, gem can auto detect all nodes, and process failover if some master nodes down
+# don't need all, gem can auto detect all nodes, and process failover if some master nodes down
+hosts = [{host: '127.0.0.1', port: 7000}, {host: '127.0.0.1', port: 7001}]
 rs = RedisCluster.new hosts
 rs.set "test", 1
 rs.get "test"
 ```
 
 now support keys command with scanning all nodes:
 ```ruby
 rs.keys 'test*'
+```
+
+limited support commands: pipelined, multi
+```ruby
+# Only support pipeline commands to one redis node once
+# You must ensure keys at one slot: use same key or hash tags
+# If you don't, not raise any errors now
+rs.pipelined do
+  rs.set "{foo}one", 1
+  rs.set "{foo}two", 2
+end
 ```
 
 ## Benchmark test
 
 A simple benchmark at my macbook, start 4 master nodes (and 4 cold slave nodes), running with one ruby process.