Remove gitter badge, add link to API docs

README.md

@@ -1,4 +1,4 @@
-# dotenv [![Gem Version](https://badge.fury.io/rb/dotenv.svg)](https://badge.fury.io/rb/dotenv) [![Join the chat at https://gitter.im/bkeepers/dotenv](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/bkeepers/dotenv?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+# dotenv [![Gem Version](https://badge.fury.io/rb/dotenv.svg)](https://badge.fury.io/rb/dotenv)
 
 Shim to load environment variables from `.env` into `ENV` in *development*.
 
@@ -29,6 +29,8 @@ Whenever your application loads, these variables will be available in `ENV`:
 config.fog_directory = ENV['S3_BUCKET']
 ```
 
+See the [API Docs](https://rubydoc.info/github/bkeepers/dotenv/main) for more.
+
 ### Rails
 
 Dotenv will automatically load when your Rails app boots. See [Customizing Rails](#customizing-rails) to change which files are loaded and when.