README.md in get_xkcd-0.1.0 vs README.md in get_xkcd-0.2.0

@@ -34,9 +34,15 @@
 
 ```ruby
 latest_issue_data = GetXkcd::Comic.fetch_latest_issue_data
 ```
 
+Get data for a specific comic:
+
+```ruby
+specific_issue_data = GetXkcd::Comic.fetch_specific_issue_data(issue_number)
+```
+
 Get data for the a random comic:
 
 ```ruby
 random_issue_data = GetXkcd::Comic.fetch_random_issue_data
 ```