docs: fix readme link to changelog (#209)

romanown · web-flow · commit fb65be8e5454 · 2021-04-06T19:38:14.000+02:00
the link was empty. put the appropriate meaning, maybe I'm wrong.
diff --git a/README.md b/README.md
@@ -55,7 +55,7 @@ Thank you for taking the time to contribute, you should start by reading the [Co
 
 ## Changelog
 
-Detailed changes for each release are listed [here]().
+Detailed changes for each release are listed [here](https://github.com/TheComputerM/svelte-materialify/blob/master/packages/svelte-materialify/CHANGELOG.md).
 
 ## Thanks:
 
