README.md in embulk-input-jira-0.0.7 vs README.md in embulk-input-jira-0.1.0

@@ -1,8 +1,9 @@
 [![Build Status](https://travis-ci.org/treasure-data/embulk-input-jira.svg)](https://travis-ci.org/treasure-data/embulk-input-jira)
 [![Code Climate](https://codeclimate.com/github/treasure-data/embulk-input-jira/badges/gpa.svg)](https://codeclimate.com/github/treasure-data/embulk-input-jira)
 [![Test Coverage](https://codeclimate.com/github/treasure-data/embulk-input-jira/badges/coverage.svg)](https://codeclimate.com/github/treasure-data/embulk-input-jira/coverage)
+[![Gem Version](https://badge.fury.io/rb/embulk-input-jira.svg)](https://badge.fury.io/rb/embulk-input-jira)
 
 # Jira input plugin for Embulk
 
 embulk-input-jira is the Embulk input plugin for [JIRA](https://www.atlassian.com/software/jira).
 
@@ -20,9 +21,11 @@
 - **username** JIRA username (string, required)
 - **password** JIRA password (string, required)
 - **uri** JIRA API endpoint (string, required)
 - **jql** [JQL](https://confluence.atlassian.com/display/JIRA/Advanced+Searching) for extract target issues (string, required)
 - **columns** target issue attributes. You can generate this configuration by `guess` command (array, required)
+- **retry_initial_wait_sec**: Wait seconds for exponential backoff initial value (integer, default: 1)
+- **retry_limit**: Try to retry this times (integer, default: 5)
 
 ## Example
 
 ```yaml
 in: