Fix link to installation instructions (#3329)

Author: Vuizur

README.md

@@ -72,7 +72,7 @@ Please use our dedicated channels for questions and discussion. Help is much mor
 | Type                            | Links                               |
 | ------------------------------- | --------------------------------------- |
 | 💼 **Documentation**              | [ReadTheDocs](https://tts.readthedocs.io/en/latest/)
-| 💾 **Installation**               | [TTS/README.md](https://github.com/coqui-ai/TTS/tree/dev#install-tts)|
+| 💾 **Installation**               | [TTS/README.md](https://github.com/coqui-ai/TTS/tree/dev#installation)|
 | 👩‍💻 **Contributing**               | [CONTRIBUTING.md](https://github.com/coqui-ai/TTS/blob/main/CONTRIBUTING.md)|
 | 📌 **Road Map**                   | [Main Development Plans](https://github.com/coqui-ai/TTS/issues/378)
 | 🚀 **Released Models**            | [TTS Releases](https://github.com/coqui-ai/TTS/releases) and [Experimental Models](https://github.com/coqui-ai/TTS/wiki/Experimental-Released-Models)|