README.md in ej-0.0.5 vs README.md in ej-0.0.6

@@ -1,9 +1,11 @@
 # Ej
 
-elasticsearch utility
+elasticsearch command line utility
 
+required ruby version >= 2.0
+
 ## Installation
 
 Add this line to your application's Gemfile:
 
     gem 'ej'
@@ -22,11 +24,11 @@
 ### simple search
 ```bash
 ej -s
 ```
 
-### other host
+### other host(default host is localhost)
 ```bash
 ej -s -h other_host
 ```
 
 ### query search and index
@@ -34,20 +36,30 @@
 ej -s "ip_address: 127.0.0.1" -i logstash-2014.07.01
 ```
 
 ### index list
 ```bash
-ej -l
+ej -l -h other_host
 ```
 
+### count
+```bash
+ej -c "log_date: 2014-01-15"
+```
+
 ### facet
 ```bash
-ej -c ip_address -q "log_date: 2014-01-15"
+ej -f session_id -q "log_date: 2014-01-15"
 ```
 
 ### mapping
 ```bash
 ej -m
+```
+
+### delete index
+```bash
+ej delete -i logstash-2014.07.01 -h other_host
 ```
 
 
 ## Contributing