Update doc (#231)

* update doc

* typo

README.md

@@ -303,7 +303,7 @@ If the database does not exist and you have permissions, it will be created for
 
 * **config.database** : String (required) - database name, must consist only of lower case letters, numbers, and `_`, must be longer than or equal to 3 chars, and the total length of database and table must be shorter than 129 chars.
 * **config.writeKey** : String (required) - write-only key, get it from your [user profile](console.treasuredata.com/users/current)
-* **config.pathname** : String (optional) - path to append after host. Default: `/js/v3/events`
+* **config.pathname** : String (optional) - path to append after host. Default: `/js/v3/event`
 * **config.host** : String (optional) - host to which events get sent. Default: `in.treasuredata.com`
 * **config.development** : Boolean (optional) - triggers development mode which causes requests to be logged and not get sent. Default: `false`
 * **config.logging** : Boolean (optional) - enable or disable logging. Default: `true`

STREAMING_INGESTION.md

@@ -2,7 +2,7 @@
 
 ## Configurations
 
-We introduce new option to opt-in our new JavaScript endpoint, named `useNewJavaScriptEndpoint`, which has value of `true` or `false`.
+We introduce a new option to opt-in our new JavaScript endpoint, named `useNewJavaScriptEndpoint`, which has a `true` or `false` value.
 When you enable this option, you need to change the `host` configuration as well, so that it will point to our new endpoint
 
 :information_source: This new feature won't impact the server side cookie and the personalization features
@@ -21,6 +21,9 @@ The `host` configuration will have the following values, depending on which envi
 - EU01 Region
   - **eu01.records.in.treasuredata.com**
 
+When you opt-out of this feature by either setting the `useNewJavaScriptEndpoint` to `false` or not setting it, please make sure that
+you update the host to the old configuration, as mentioned in [this section](README.md#treasureconfig)
+
 Example:
 
 ```javascript