Update README.md (danny-avila#1060)

Author: berry-13

README.md

@@ -100,6 +100,7 @@ Keep up with the latest updates by visiting the releases page - [Releases](https
   * [Third-Party Tools](docs/features/third_party.md)
   * [Proxy](docs/features/proxy.md)
   * [Bing Jailbreak](docs/features/bing_jailbreak.md)
+  * [Token Usage](docs/features/token_usage.md)
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