[docs] faster-whisper installation

README.rst

@@ -97,6 +97,7 @@ To use all of the functionality of the library, you should have:
 * **FLAC encoder** (required only if the system is not x86-based Windows/Linux/OS X)
 * **Vosk** (required only if you need to use Vosk API speech recognition ``recognizer_instance.recognize_vosk``)
 * **Whisper** (required only if you need to use Whisper ``recognizer_instance.recognize_whisper``)
+* **Faster Whisper** (required only if you need to use Faster Whisper ``recognizer_instance.recognize_faster_whisper``)
 * **openai** (required only if you need to use OpenAI Whisper API speech recognition ``recognizer_instance.recognize_openai``)
 * **groq** (required only if you need to use Groq Whisper API speech recognition ``recognizer_instance.recognize_groq``)
 
@@ -179,6 +180,13 @@ Whisper is **required if and only if you want to use whisper** (``recognizer_ins
 
 You can install it with ``python3 -m pip install SpeechRecognition[whisper-local]``.
 
+Faster Whisper (for Faster Whisper users)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The library `faster-whisper <https://pypi.org/project/faster-whisper/>`__ is **required if and only if you want to use Faster Whisper** (``recognizer_instance.recognize_faster_whisper``).
+
+You can install it with ``python3 -m pip install SpeechRecognition[faster-whisper]``.
+
 OpenAI Whisper API (for OpenAI Whisper API users) 
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~