added changelog

README.md

@@ -126,6 +126,10 @@ Again, remember that when you deploy your service, the plugin will inject these
 
 You can find example usage in the `examples` folder.
 
+### Changelog
+
+https://colyn.dev/serverless-dotenv-plugin-changelog/
+
 ### Contributing
 
 Because of the highly dependent nature of this plugin (i.e. thousands of developers depend on this to deploy their apps to production) I cannot introduce changes that are backwards incompatible. Any feature requests must first consider this as a blocker. If submitting a PR ensure that the change is developer opt-in only meaning it must guarantee that it will not affect existing workflows, it's only available with an opt-in setting. I appreciate your patience on this. Thanks.