Fix typos in datasource_authorization.md

AhyoungRyu · AhyoungRyu · commit cea8c9375fb6 · 2016-07-09T22:09:18.000+09:00
diff --git a/docs/security/datasource_authorization.md b/docs/security/datasource_authorization.md
@@ -27,31 +27,33 @@ Data source authorization involves authenticating to the data source like a Mysq
 Apache Zeppelin allows users to use their own credentials to authenticate with **Data Sources**.
 
 For example, let's assume you have an account in the Vertica databases with credentials. 
-You might want to use this account to create a JDBC connection instead of a shared account with all users. 
-In this case, you can add your credential information to Zeppelin and use them with below simple steps.  
+You might want to use this account to create a JDBC connection instead of a shared account with all users who are defined in `conf/shiro.ini`. 
+In this case, you can add your credential information to Apache Zeppelin and use them with below simple steps.  
 
-## How to save credential information?
+## How to save the credential information?
 You can add new credentials in the dropdown menu for your data source which can be passed to interpreters. 
 
 <img class="img-responsive" src="../assets/themes/zeppelin/img/docs-img/credential_tab.png" width="180px"/>
 
-**Entity** can be the key that distiguishes each credential sets. Type **Username & Password** for your own credentials. ex) user & password of Mysql 
+**Entity** can be the key that distinguishes each credential sets. Type **Username & Password** for your own credentials. ex) user & password of Mysql 
 
 <img class="img-responsive" src="../assets/themes/zeppelin/img/docs-img/add_credential.png" />
 
-The credentials saved as per users defined in `conf/shiro.ini`. All credential informtation can be found in `conf/credentials.json`. 
+The credentials saved as per users defined in `conf/shiro.ini`.
+If you didn't activate [shiro authentication in Apache Zeppelin](./shiroauthentication.html), your credential information will be saved as `anonymous`.
+All credential information also can be found in `conf/credentials.json`. 
 
 #### JDBC interpreter
 You need to maintain per-user connection pools.
-The interpret method takes the user string as parameter and executes the jdbc call using a connection in the user's connection pool.
+The interpret method takes the user string as a parameter and executes the jdbc call using a connection in the user's connection pool.
 
 #### Presto 
-You don't need password if the Presto DB server runs backend code using HDFS authorization for the user.
+You don't need a password if the Presto DB server runs backend code using HDFS authorization for the user.
 
 #### Vertica and Mysql 
-You have to store password information for users.
+You have to store the password information for users.
 
 ## Please note
 As a first step of data source authentication feature, [ZEPPELIN-828](https://issues.apache.org/jira/browse/ZEPPELIN-828) was proposed and implemented in Pull Request [#860](https://github.com/apache/zeppelin/pull/860).
-Currently, customized 3rd party interpreters can use this feature. We are planning to apply this mechanism to [the community interpreters](../manual/interpreterinstallation.md#available-community-managed-interpreters) in the near future. 
+Currently, only customized 3rd party interpreters can use this feature. We are planning to apply this mechanism to [the community interpreters](../manual/interpreterinstallation.md#available-community-managed-interpreters) in the near future. 
 Please keep track [ZEPPELIN-1070](https://issues.apache.org/jira/browse/ZEPPELIN-1070). 
