docs: update documentation links to be more uniform

Author: stainless-app[bot]

README.md

@@ -15,7 +15,7 @@ It is generated with [Stainless](https://www.stainless.com/).
 
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-The REST API documentation can be found on [developer.tryfinch.com](https://developer.tryfinch.com/). Javadocs are also available on [javadoc.io](https://javadoc.io/doc/com.tryfinch.api/finch-java/5.2.0).
+The REST API documentation can be found on [developer.tryfinch.com](https://developer.tryfinch.com/). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.tryfinch.api/finch-java/5.2.0).
 
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