modify README.md.

Author: bobliu0909

README.md

@@ -1,6 +1,10 @@
 # Cloudtask InitConfig
 
-The cloudtask platform initialize configuration tool.
+The cloudtask platform initialize configuration tool.   
+
+It sets the system common configuration parameters to the zookeeper path.
+
+cloudtask zookeeper configuration path is `/cloudtask/ServerConfig`
 
 ### Dependencies
 
@@ -15,6 +19,26 @@ The cloudtask platform initialize configuration tool.
 $ ./cloudtask-initconfig -f ./ServerConfig.json
 ```
 
+### Output Successed
+``` bash
+2018/03/16 15:07:29 Connected to 192.168.2.80:2181
+2018/03/16 15:07:29 Authenticated: id=99692315792834560, timeout=15000
+2018/03/16 15:07:29 Re-submitting `0` credentials after reconnect
+zookeeper path: /cloudtask/ServerConfig
+2018/03/16 15:07:30 Recv loop terminated: err=EOF
+serverconfig: {"websitehost":"192.168.2.80:8091","centerhost":"192.168.2.80:8985","storagedriver":{"mongo":{"auth":{"password":"ds4dev","user":"datastoreAdmin"},"database":"cloudtask","hosts":"192.168.2.80:27017,192.168.2.81:27017,192.168.2.82:27017","options":["maxPoolSize=20","replicaSet=mgoCluster","authSource=admin"]}}}
+
+2018/03/16 15:07:30 Send loop terminated: err=<nil>
+initconfig to zookeeper successed!
+```
+
+### Checking Zookeeper OK?
+``` bash
+$ ./zkCli.sh -server 192.168.2.80
+[zk: 192.168.2.80(CONNECTED) 0] get /cloudtask/ServerConfig
+{"websitehost":"192.168.2.80:8091","centerhost":"192.168.2.80:8985","storagedriver":{"mongo":{"auth":{"password":"ds4dev","user":"datastoreAdmin"},"database":"cloudtask","hosts":"192.168.2.80:27017,192.168.2.81:27017,192.168.2.82:27017","options":["maxPoolSize=20","replicaSet=mgoCluster","authSource=admin"]}}}
+```
+
 ### ServerConfig.json
 
 ``` json
@@ -24,8 +48,8 @@ $ ./cloudtask-initconfig -f ./ServerConfig.json
         "root": "/cloudtask"
     },
     "serverconfig": {
-        "websitehost": "192.168.2.80:8091",
-        "centerhost": "192.168.2.80:8985",
+        "websitehost": "http://192.168.2.80:8091",
+        "centerhost": "http://192.168.2.80:8985",
         "storagedriver": {
             "mongo": {
                 "hosts": "192.168.2.80:27017,192.168.2.81:27017,192.168.2.82:27017",
@@ -43,4 +67,43 @@ $ ./cloudtask-initconfig -f ./ServerConfig.json
         }
     }
 }
+```
+
+- zookeeper   
+  `hosts`: set the zookeeper cluster hosts address to ensure that the state is running.   
+  `root`: cloudtask zookeeper root path.   
+- serverconfig   
+  `websitehost`: cloudtask-web http address.   
+  `centerhost`: cloudtask-center scheduler http address.      
+  `storagedriver`: mongodb drvier cluster configs, currently only supports mongodb database, `mongo` key is `Required`.    
+  `mongo.hosts`: set the mongodb cluster hosts address.   
+  `mongo.database`: cloudtask database name.   
+  `mongo.auth`: mongodb database safety certificate, if no security certificate, please ignorable 'auth' key.   
+  `mongo.options`: mongodb cluster more k/v pair options, please see https://docs.mongodb.com/manual/reference/connection-string/#connections-connection-options 
+
+
+### Example Mongo Driver No Security Setting
+
+``` json
+{
+    "zookeeper": {
+        "hosts": "192.168.2.80:2181,192.168.2.81:2181,192.168.2.82:2181",
+        "root": "/cloudtask"
+    },
+    "serverconfig": {
+        "websitehost": "http://192.168.2.80:8091",
+        "centerhost": "http://192.168.2.80:8985",
+        "storagedriver": {
+            "mongo": {
+                "hosts": "192.168.2.80:27017,192.168.2.81:27017,192.168.2.82:27017",
+                "database": "cloudtask",
+                "options": [
+                    "maxPoolSize=20",
+                    "replicaSet=mgoCluster",
+                    "authSource=admin"
+                ]
+            }
+        }
+    }
+}
 ```

ServerConfig.json

@@ -4,8 +4,8 @@
         "root": "/cloudtask"
     },
     "serverconfig": {
-        "websitehost": "192.168.2.80:8091",
-        "centerhost": "192.168.2.80:8985",
+        "websitehost": "http://192.168.2.80:8091",
+        "centerhost": "http://192.168.2.80:8985",
         "storagedriver": {
             "mongo": {
                 "hosts": "192.168.2.80:27017,192.168.2.81:27017,192.168.2.82:27017",