readme update

README.md

@@ -26,7 +26,7 @@ yarn lint
 <zotero-query-component :default-type="user" :default-id="1234" @entrySelected="selectedEntryCallback"/>
 ```
 
-where default-type is "user" or "group" and default-id is a group or user id (https://www.zotero.org/support/dev/web_api/v3/basics)
+where **default-type** is *"user"* or *"group"* and **default-id** is a *group* or *user* id (https://www.zotero.org/support/dev/web_api/v3/basics)
 
 Another example with custom options :
 
@@ -42,7 +42,8 @@ Another example with custom options :
     @entrySelected="selectedEntryCallback"/>
 ```
 
-available formats : https://www.zotero.org/support/dev/web_api/v3/basics#export_formats 
+available formats : https://www.zotero.org/support/dev/web_api/v3/basics#export_formats. *zotero-query-component* uses 'tei'
+as default one.
 
 ### Customize configuration
 See [Configuration Reference](https://cli.vuejs.org/config/).